set of various optical accessories
Date: 1900-1950
Inventory Number: 2003-1-0178
Classification: Accessory
Dimensions:storage box: 11 × 11 × 28 cm (4 5/16 × 4 5/16 × 11 in.)
Description:
This set comprises three eyepieces; two microfiche lenses; 17 experimental lenses; 11 diffusions lenses and one beamsplitting tube split in half (for demonstration purposes).