Exposure holder for printing photographs. Wooden frame, with wooden block that can slide across into position when print paper is adequately exposed. Two matching pieces of wood hinged at back that form one. Photographic paper and negative is sandwiched between the two pieces prior to exposure to light.
Exposure Frame - Printing Photographs, [UA-00003103] . The University of Adelaide, accessed 19/07/2025, https://connect.adelaide.edu.au/nodes/view/3300