Photograph on paper
Signed certificate of authenticity.
Wet plate collodion photogram image made with an emulsion of pure silver on aluminium plate. Small clock parts placed in contact with the wet emulsion for exposure made in the darkroom.
The wet plate collodion process dates from 1851 credited to Frederick Scott Archer. It requires the photographic base, commonly glass or tin, to be coated, sensitized, exposed and developed before the wet emulsion begins to dry, usually within a span of about 10-15 minutes. By the nature of this hand created process each plate is unique and cannot be exactly duplicated.