plate holder
Date: 1880 - 1900
Inventory Number: 1997-1-0750c
Classification: Photographic Plate Holder
Dimensions:17.5 × 17.4 × 1.3 cm (6 7/8 × 6 7/8 × 1/2 in.)
box: 32.3 × 63 × 48.5 cm (12 11/16 × 24 13/16 × 19 1/8 in.)
Description:
A crude plate holder, perhaps for glass plates, which then were inserted in a slide projector. Two metal clips are attached to the back. Most likely used with the accompanying goggles in psychology experiments. See #1997-1-0750d and e.