Green photographic filter in case

The green photographic filter is stored in a small red and white plastic case with a transparent lid. A green circular glass surface is visible in the centre, with a small marking on the frame. The case is scuffed and dusty, while the glass shows minor signs of use.

Code: fo10343
Category: Photo, microscopes, optics
Subcategory: Darkroom
Width: 6 cm
Quantity: 2 pcs
Period: 1960s, 1970s
Material: Glass, Plastic
Colour: Green, Red, White