Littlefield, Parsons & Co. (maker), n.d., Berg 1-47, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11888

Samuel Peck and Co. (maker), n.d., Berg 1-118G, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11889

Unidentified manufacturer, n.d., Berg 1-137, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11890

Holmes, Booth and Haydens (maker), n.d., Berg 1-178, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11891

Frederick C. Key and Son (maker), n.d., Berg 1-194, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11892

Scovill Manufacturing Company, n.d., Berg 2-33C2, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11893

Scovill Manufacturing Company, n.d., Berg 3-25C1, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11894

Littlefield, Parsons & Co. (maker), n.d., Berg 3-62G, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11895

Holmes, Booth and Haydens (maker), n.d., Berg 3-157a, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11896

Unidentified manufacturer, n.d., Berg 3-178m, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11897

Unidentified manufacturer, n.d., Berg 3-451a, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11898

Unidentified manufacturer, n.d., Berg 3-518Mat3, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11899

Unidentified manufacturer, n.d., Berg 4-15, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11900

Unidentified manufacturer, n.d., Berg 4-16G, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11901

Unidentified manufacturer, n.d., Berg 4-62G, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11902

Unidentified manufacturer, n.d., Berg 5-10Ga, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11903

Unidentified manufacturer, n.d., Berg 5-26, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11904

Unidentified manufacturer, n.d., Berg 5-30Ga, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11905

Unidentified manufacturer, n.d., Berg 5-140, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11906

Unidentified manufacturer, n.d., Berg 6-9, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11907

Unidentified manufacturer, n.d., Berg 6-14, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11908

Unidentified manufacturer, n.d., Berg 6-22, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11909

Unidentified manufacturer, n.d., Berg 6-27C, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11910

Unidentified manufacturer, n.d., Berg 6-58, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11911

Unidentified manufacturer, n.d., Berg 6-100, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11949

Unidentified manufacturer, n.d., Berg 6-114, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11912

F.R. Slocum & Co. (maker), n.d., Berg 6-181, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11913

Unidentified manufacturer, n.d., Berg 6-196G, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11914

Unidentified manufacturer, n.d., Berg 6-220, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11915

Unidentified manufacturer, n.d., Berg 6-259, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11916

Unidentified manufacturer, n.d., Berg 6-264, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11917

Unidentified manufacturer, n.d., Berg 6-354, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11918

Unidentified manufacturer, n.d., Berg 6-360, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11920

Unidentified manufacturer, n.d., Berg 6-363, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11921

Unidentified manufacturer, n.d., Berg 6-372, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11922

Unidentified manufacturer, n.d., Berg 6-431, Union case, Private collection, Courtesy "Nineteenth Century Photographic Cases and Wall Frames"
© Paul K. Berg - Used with permission, LL/11923

n.d., Book cover for "Nineteenth Century Photographic Cases and Wall Frames" by Paul Berg, Book cover, Private collection of Paul K. Berg, LL/11999