Mark Osterman, 2012, [A portrait at the Osterman Skylight Studio], Crystalotype, Provided by the artist - Mark Osterman, LL/115432

Unidentified photographer / artist, 1870s, Photographic equipment, Engraving, Provided by the artist - Mark Osterman, LL/35904

Mark Osterman, n.d., Photographers Eye Rests - From the Tomishige Studio, these were placed in front of the subject being photographed who was asked to look at a number., Colour photograph, Provided by the artist - Mark Osterman, LL/121647

Mark Osterman, 2008, France Scully and Mark Osterman in rural Mexico shooting collodion plates, Color image, Provided by the artist - Mark Osterman, LL/35902

Scully & Osterman, 1995, Color Sensitivity Comparison: Kodacolor II v. Wet-Plate Collodion, Illustration, Provided by the artist - Mark Osterman, LL/86593

Mark Osterman, 2000-2001, Roger Watson, Physiognotrace, Provided by the artist - Mark Osterman, LL/42731

Mark Osterman, 2006 (ca), Two-headed Boy, [Amnesia Curiosa], Salt print, from collodion negative, Provided by the artist - Mark Osterman, LL/29671

Mark Osterman, 2018 (posted to Facebook), The use of a gradient background in the Scully & Osterman Studio, Rochester, New York, Colour photograph, Provided by the artist - Mark Osterman, LL/83702

Mark Osterman, 2012, [Still life at the Osterman Skylight Studio], Crystalotype, Provided by the artist - Mark Osterman, LL/115443

Mark Osterman, 2018 (posted to Facebook), The back of a gradient background in the Scully & Osterman Studio, Rochester, New York, Colour photograph, Provided by the artist - Mark Osterman, LL/83703

, 2008, Untitled (Rural Mexico), Collodion, Provided by the artist - Mark Osterman, LL/35903