Zenith Tempest 8 x 40

No: 530317

This Zenith binocular was made by JB 2 = Katsuma Kogaku Kikai Co.Ltd.

Katsuma is mentioned by various sources as a binocular maker, and it seems that it continued to make binoculars long after it dropped the camera activity, sometimes using the English name Katsuma Optical Company and the corresponding KOC logo inside a triangle, itself inside a circle. (Pict. 4)