Clarence H. White, 1908, July, Portrait - Master Tom, [Camera Work, no. 23, pl. 07], Photogravure, Robert Tat Gallery, LL/9015

Charles Gatewood, 1979 (taken) 2009 (print), Larry Clark, Woodstock, Chromogenic (silver halide) print, Robert Tat Gallery, LL/34043

Imogen Cunningham, 1963, From the Back Porch of 1331, Gelatin silver print, Robert Tat Gallery, LL/21917

Unidentified photographer, 1910, Bust Sculpture by Mario Joseph Korbel, Gelatin silver print, Robert Tat Gallery, LL/8946

Unidentified photographer, n.d., untitled (female nude turning head), Gelatin silver print, Robert Tat Gallery, LL/8920

Unidentified photographer, 1900 (ca), Saw Mill (machinery and cylinders), Cyanotype, Robert Tat Gallery, LL/8944

Charles Gatewood, 1972, untitled (reflection in car mirror, Times Square), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26377

Charles Gatewood, 1972, untitled (two men, shadows on wall), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26378

Charles Gatewood, 1973, untitled (man, car on plaza), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26376

Charles Gatewood, 1973, untitled (man with camera and bird), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26373

Unidentified photographer, 1899, Dewey Day, Montpelier, Vermont, Cyanotype, Robert Tat Gallery, LL/8912

Walery, 1920s (ca), Moroccan Nude (no. 107), Gelatin silver print, Robert Tat Gallery, LL/9007

Unidentified photographer, 1955 (before), Spider in it's Web, Gelatin silver print, Robert Tat Gallery, LL/8950

Unidentified photographer, 1846 (ca), Starboard Watch of Maintopmen "Constance", Albumen print, Robert Tat Gallery, LL/8911

Alfred Stieglitz, 1911, October, A Dirigible, [Camera Work, no. 36, pl. 08], Photogravure, Robert Tat Gallery, LL/9016

Imogen Cunningham, 1925 (later print), Magnolia Blossom, Tower of Jewels, Gelatin silver print, Robert Tat Gallery, LL/21692

Imogen Cunningham, 1920, Signal Hill Tanks and Towers 2, Gelatin silver print, Robert Tat Gallery, LL/21679

Charles Gatewood, 1972 (taken) 1981 (print), Portrait of Cockette, [Sidetripping], Gelatin silver print, Robert Tat Gallery, LL/26379

Imogen Cunningham, n.d., Blind stamp of Imogen Cunningham's signature and her Chinese chop. these are found on Trust prints, printed posthumously by the Trust from Imogen's negatives., Blind stamp, Robert Tat Gallery, LL/21969

Imogen Cunningham, 1920s (late), Leaf Pattern, Gelatin silver print, Robert Tat Gallery, LL/21676

Unidentified photographer, 1900 (ca), Saw Mill (large cylinders, foreground), Cyanotype, Robert Tat Gallery, LL/8941

Imogen Cunningham, 1918 (later), Roi on the Dipsea Trail 2, Gelatin silver print, Robert Tat Gallery, LL/21916

Unidentified photographer, 1940s, Pipe Smokers, Gelatin silver print, Robert Tat Gallery, LL/8913

Unidentified photographer, 1900 (ca), Catalogue card, Albumen print, Robert Tat Gallery, LL/9000

Unidentified photographer, 1906, Market St., San Francisco, After 1906 Earthquake, Gelatin silver print, Robert Tat Gallery, LL/8924

Charles Gatewood, 1973 (taken), untitled (woman points at cube sculpture), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26381

Unidentified photographer, 1900 (ca), Family Band, Gelatin silver print, Robert Tat Gallery, LL/8954

Unidentified photographer / artist, 2007, Promotional graphic for the 20th Century Modernism exhibition (March 1 - April 21, 2007) at the Robert Tat Gallery, Digital invitation, Robert Tat Gallery, LL/17358

Imogen Cunningham, 1928 (taken) 2000 (print), Triangles, Platinum / palladium print, Robert Tat Gallery, LL/21695

Imogen Cunningham, 1910, Ben Butler, Gelatin silver print, Robert Tat Gallery, LL/21684

Imogen Cunningham, 1925/1967, Aloe, Gelatin silver print, Robert Tat Gallery, LL/21687

Unidentified photographer, 1960s (ca), Crab Nebula in Taurus, Gelatin silver print, Robert Tat Gallery, LL/8925

Imogen Cunningham, 1910, The Dream, Gelatin silver print, Robert Tat Gallery, LL/21915

Unidentified photographer, n.d., Air Field, Gelatin silver print, Robert Tat Gallery, LL/8917

Clarence H. White, 1908, July, The Arbor, [Camera Work, no. 23, pl. 03], Photogravure, Robert Tat Gallery, LL/9014

Unidentified photographer, 1890 (ca), Man Smoking Pipe, With Cart, Tintype, Robert Tat Gallery, LL/8984

Raymond Darolle, 1940 (ca), Radar Worker, Gelatin silver print, Robert Tat Gallery, LL/8998

Charles Gatewood, 1972 (taken) 2009 (print), William S. Burroughs, Brion Gysin and Dream Machine, Gelatin silver print, Robert Tat Gallery, LL/34044

Unidentified photographer, 1955 (before), Tennis Player Silhouette, Gelatin silver print, Robert Tat Gallery, LL/8989

Imogen Cunningham, 1930s (ca), Shells 5, Gelatin silver print, Robert Tat Gallery, LL/21685

Unidentified photographer, 1915, Palace of Fine Arts, San Francisco (PPIE) Hand-colored, Gelatin silver print, hand-coloured, Robert Tat Gallery, LL/8915

Imogen Cunningham, n.d., Older version of label found on the verso of the mat on The Imogen Cunningham Trust prints, printed posthumously by the Trust from Imogen's negatives., Studio label, Robert Tat Gallery, LL/21967

Imogen Cunningham, n.d., Newer version of the label on the verso of the mat on The Imogen Cunningham Trust prints, printed posthumously by the Trust from Imogen's negatives., Studio label, Robert Tat Gallery, LL/21966

Central Photo Parlors, 1895 (ca), Dandy!, Gelatin silver print, toned (Cabinet card), Robert Tat Gallery, LL/8949

2008, Evite for the exhibition ":The Small Photograph - An Appreciation" at the Robert Tat Gallery, San Francisco (January 3 - February 2, 2008), E-vite, Robert Tat Gallery, LL/26434

Unidentified photographer, 1910 (ca), Boy with Bicycle, Tintype, Robert Tat Gallery, LL/8956

George H. Seeley, 1907, The Black Bowl, [Camera Work, no. 20, pl. 02], Photogravure, Robert Tat Gallery, LL/9003

Unidentified photographer, 1930s (ca), Ships on the Horizon, Gelatin silver print, toned, Robert Tat Gallery, LL/8909

Unidentified photographer, 1880s (ca), Study of Algae (Nitens), Cyanotype, Robert Tat Gallery, LL/8928

Victor S. Matson, 1920 (ca), Mother and Son on the Road, Gelatin silver print, toned, Robert Tat Gallery, LL/9011

Walery, 1920s (ca), Moroccan Nude (no. 106), Gelatin silver print, Robert Tat Gallery, LL/9008

Copley Kerns Stowe, 1930s (ca), Skyline from Telegraph Hill, San Francisco, Gelatin silver print, toned, Robert Tat Gallery, LL/9010

Charles Gatewood, 1970, untitled (Tranny boys getting dressed), [Mardi Gras], Gelatin silver print, Robert Tat Gallery, LL/26382

Imogen Cunningham, 1920s (taken) 2001 (print), Magnolia Bud, Platinum / palladium print, Robert Tat Gallery, LL/21696

Clarence H. White, 1908, Boys Wrestling, [Camera Work, no. 23, pl. 08], Photogravure, Robert Tat Gallery, LL/9006

Imogen Cunningham, n.d., Stamp on verso of mat from unsigned, original (mostly vintage) prints which were found in Imogen Cunningham's studio at the time of her death. The stamp carries a wet signature for authentication., Studio stamp, Robert Tat Gallery, LL/21965

Unidentified photographer, 1920 (ca), Man in Front of Diner, Tintype, Robert Tat Gallery, LL/8986

Reid Miles, 1985, Joan Collins Impersonating Cleopatra, C-print, Robert Tat Gallery, LL/8953

Unidentified photographer, 1940s, Foundry Stack, Gelatin silver print, Robert Tat Gallery, LL/8985

Imogen Cunningham, 1957 (later print), The Unmade Bed, Gelatin silver print, Robert Tat Gallery, LL/21693

Charles Gatewood, 1973, untitled (man on steps), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26375

Clarence H. White, 1908, July, Nude, [Camera Work, no. 23, pl. 10], Photogravure, Robert Tat Gallery, LL/9013

Willard Worden, 1910 (ca), Palo Alto, California, Gelatin silver print, Robert Tat Gallery, LL/9009

Unidentified photographer, 1920s (ca), Basketball Team (double-sided album page), Gelatin silver print, Robert Tat Gallery, LL/8996

Unidentified photographer, 1930s (ca), Bowl of Fruit, Gelatin silver print, Robert Tat Gallery, LL/8943

Unidentified photographer, 1910 (ca), Goulds Manufacturing Co., Cyanotype, Robert Tat Gallery, LL/8948

Unidentified photographer, 1900s (early), After the Flood, Gelatin silver print, sepia-toned, Robert Tat Gallery, LL/9001

Imogen Cunningham, 1925 (taken later print), Magnolia Blossom, Gelatin silver print, Robert Tat Gallery, LL/21690

Unidentified photographer, 1960s (ca), Light Drawing, Gelatin silver print, Robert Tat Gallery, LL/8988

Charles Gatewood, 1973 (taken), untitled (boy tripping on the Circle Line ferry to Fire Island), [Sidetripping], Gelatin silver print, Robert Tat Gallery, LL/26380

Karl Struss, 1912 (taken) 1979 (print), Brooklyn Bridge from Ferry Slip, Evening, [Karl Struss: A Portfolio, 1909/29], Platinum print, contact, Robert Tat Gallery, LL/32340

Unidentified photographer, 1920s (ca), Basketball Team (double-sided album page), Gelatin silver print, Robert Tat Gallery, LL/8997

H. M. Auld, 1897, March, Early Kodak: untitled Double Exposure (man with landscape), Gelatin silver printing-out paper, Robert Tat Gallery, LL/8994

Unidentified photographer, 1915 (ca), Women's Hats Catalog Sheet, Gelatin silver print, Robert Tat Gallery, LL/8914

Imogen Cunningham, 1956, Desert Plant 3, Gelatin silver print, warm-toned, Robert Tat Gallery, LL/21921

Imogen Cunningham, 1973, Hands of a Hand Surgeon, Gelatin silver print, Robert Tat Gallery, LL/21919

Unidentified photographer, 1890s, Amblysteglum, Cyanotype, Robert Tat Gallery, LL/8951

Imogen Cunningham, 1918 (later), Roi on the Dipsea Trail 5, Gelatin silver print, Robert Tat Gallery, LL/21923

Imogen Cunningham, n.d., Blind stamp of Imogen Cunningham's signature and her Chinese chop. these are found on Trust prints, printed posthumously by the Trust from Imogen's negatives., Blind stamp, Robert Tat Gallery, LL/21968

Imogen Cunningham, 1920s, Flax, Gelatin silver print, Robert Tat Gallery, LL/21683

Imogen Cunningham, 1956, Money Plant, Gelatin silver print, Robert Tat Gallery, LL/21682

Frank Eugene, 1910, Rebecca, [Camera Work, no. 30, pl. 03], Photogravure, Robert Tat Gallery, LL/9017

Unidentified photographer, 1910 (ca), Woman in Canoe, Cyanotype, Robert Tat Gallery, LL/8995

Unidentified photographer, n.d., Sail Boats, hand-painted, Gelatin silver print or albumen print, hand-coloured, Robert Tat Gallery, LL/8952

Karl Struss, 1912 (taken) 1979 (print), Lower Broadway, New York, [Karl Struss: A Portfolio, 1909/29], Platinum print, contact, Robert Tat Gallery, LL/32343

Imogen Cunningham, 1930s (late), Newsboy, Gelatin silver print, Robert Tat Gallery, LL/21920

Karl Struss, 1912 (taken) 1979 (print), Cables - New York Skyline through Brooklyn Bridge, [Karl Struss: A Portfolio, 1909/29], Platinum print, contact, Robert Tat Gallery, LL/32341

Unidentified photographer, 1940s, Twelve Portraits of a Man, Gelatin silver print, Robert Tat Gallery, LL/8927

Tim Matson, 1960s, Pilobolus Dance theatre, Gelatin silver print, Robert Tat Gallery, LL/8940

Unidentified photographer, 1908, Man with Skeleton in Doorway, Gelatin silver print, Robert Tat Gallery, LL/8926

Unidentified photographer, 1930s (ca), Toil, Gelatin silver print, Robert Tat Gallery, LL/8992

Alvin Langdon Coburn, 1906, The Bridge - Sunlight, [Camera Work, no. 15, pl. 02], Photogravure, Robert Tat Gallery, LL/9012

Karl Struss, 1909 (taken) 1979 (print), Metropolitan Life Insurance Tower, New York, [Karl Struss: A Portfolio, 1909/29], Platinum print, contact, Robert Tat Gallery, LL/32342

Harcourt Studio, 1930s, Woman with Shadows, Gelatin silver print, Robert Tat Gallery, LL/8993

Imogen Cunningham, 1920s (late, later print), Two Callas 2, Gelatin silver print, Robert Tat Gallery, LL/21691

Unidentified photographer, 1920s (ca), Greek Corinthian Column Capitals, Gelatin silver print, Robert Tat Gallery, LL/8947

Imogen Cunningham, 1915, Black Point from Ferry Boat, Gelatin silver print, Robert Tat Gallery, LL/21688

Imogen Cunningham, n.d. (taken) 1973 (print), Rocks and Driftwood, Gelatin silver print, Robert Tat Gallery, LL/21918

Charles Gatewood, 1972, untitled (man with fireplug and steam), [Wall Street], Gelatin silver print, Robert Tat Gallery, LL/26374

Unidentified photographer, 1910 (ca), Damascus Gate, Jerusalem, Gelatin silver print, toned, Robert Tat Gallery, LL/8939

Unidentified photographer, 1915, Panama Pacific International Exhibition, Gelatin silver print, toned, Robert Tat Gallery, LL/8987

Unidentified photographer, 1910 (ca), Botanical Photogram, Cyanotype, photogram, Robert Tat Gallery, LL/8919

Unidentified photographer, 1945 (ca), Horse and Rider (negative image), Gelatin silver print, Robert Tat Gallery, LL/8922

George H. Seeley, 1910, Girl with Bowl, [Camera Work, no. 29, pl. 01], Photogravure, Robert Tat Gallery, LL/9004

Arthur Wells Bawtree, 1900 (ca), Wing of a Gnat, Magnified 40 Times, Gelatin silver print, Robert Tat Gallery, LL/8955

Unidentified photographer, 1900 (ca), Saw Mill (exterior with two women), Cyanotype, Robert Tat Gallery, LL/8942

Unidentified photographer, 1890 (ca), Leaves with photographs, Albumen print, Robert Tat Gallery, LL/8999

Unidentified photographer, 1930s (ca), By their Lips you Shall Know Them, Gelatin silver print, Robert Tat Gallery, LL/8910

Imogen Cunningham, 1931-1932 (?), Martha Graham 48, Gelatin silver print, Robert Tat Gallery, LL/21686

Imogen Cunningham, 1960s, Abstract Wall, Gelatin silver print, Robert Tat Gallery, LL/21681

Michael E. Bry, 1960s, Peace March, Gelatin silver print, Robert Tat Gallery, LL/8916

Unidentified photographer, 1920 (ca), Bonne Année - spirit image, Gelatin silver print, postcard, Robert Tat Gallery, LL/8945

Imogen Cunningham, 1972, Doll in Junk heap, Gelatin silver print, Robert Tat Gallery, LL/21680

Imogen Cunningham, 1918 (later), Roi on the Dipsea Trail 4, Gelatin silver print, Robert Tat Gallery, LL/21922

Imogen Cunningham, 1960s (print date unknown), Hands and Aloe Plicatilis, Gelatin silver print, toned, Robert Tat Gallery, LL/21677

Air Corps U.S. Army, 1930s, Ferry Building, San Francisco, California, Gelatin silver print, Robert Tat Gallery, LL/8923

Alyson Belcher, 2007, 1 November, Evite for the exhibition "Alyson Belcher: Body of Light - Pinhole Self Portraits" (Nov 1 - Dec 22, 2007 at the Robert Tat Gallery), E-vite, Robert Tat Gallery, LL/24406

Karl and Emilie Romaine, 1940s (ca), Paper Doll Band, Gelatin silver print, Robert Tat Gallery, LL/8991

Imogen Cunningham, 1929 (later print), John Bovington 3, Platinum / palladium print, Robert Tat Gallery, LL/21694

Unidentified photographer, 1940s (ca), Pine Trees Silhouette, Gelatin silver print, sepia-toned, Robert Tat Gallery, LL/8918

Imogen Cunningham, 1920s (taken, later print), Leaf Pattern, Gelatin silver print, Robert Tat Gallery, LL/21689

Baron Adolph de Meyer, 1908, October, Guitar Player of Seville, [Camera Work, no. 24, pl. 06], Photogravure, Robert Tat Gallery, LL/9005

Imogen Cunningham, 1974, Cunningham: Hand and Egg, Gelatin silver print, Robert Tat Gallery, LL/21678

Unidentified photographer, 1930s (ca), Soap, Gelatin silver print, toned, Robert Tat Gallery, LL/8990

Imogen Cunningham, 1929 (before), Leaf Pattern, Carmel Mission, Gelatin silver print, Robert Tat Gallery, LL/21675

Unidentified photographer / artist, 1912 (ca), Violin Making Machine, Robert Tat Gallery, LL/9002

Unidentified photographer, 1940s (ca), Sheep Grazing, Monument Valley, Utah, Gelatin silver print, toned, Robert Tat Gallery, LL/8921