ID of Photographic Prints #2: Planitotype

Notes from class “History and Identification of Paper, Print, and Photographic Processes,” taught by Gary E. Albright at the Rochester Regional Library Council.

Planitotype: 1880-1930, neutral image color, slate gray, can change tone with gold which increased stability, no fading, paper support fades making photo look darker, image can transfer from facing image (one-to-one transfer), expensive.
A true photograph, one layer structure with no binder, no baryta layer. Image lies in top layer of paper, paper fibers are clearly visible, has a matte surface.

Platinotype
Courtesy of Onondaga Historical Association from the Syracuse Camera Club folder.

The unbacked planitotypes I have “handled” are thin and fragile.

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