Made in the USA by GE General Electric. It is working in so much that the needle moves when exposed to a light source.
Boxed POLAROID Exposure METER 625 12-12000 ISO/ASA in EV Exposure Values. Gossen
PHOTOPIA TYPE NE-3 VINTAGE EXPOSURE (LIGHT) METER WITH LEATHER CASE PHOTOGRAPHY
Vintage Heydes Aktino Photo Meter - Extinction Type Exposure Meter
LYP03372C0(X) POWER SUPPLY FOR POLAROID POWER SUPPLY FOR POLAROID P45FN0038K
STCON495Q FOR POLAROID P50UPF2024A 2407 TCON BOARD FOR POLAROID P50UPA2032A 2209
Camera Exposure Meter Calibration Tool 1.35V PX625 MR9 PX13 H-D Film Camera