United Optical Instruments were based in Southend-on-Sea, England. They are known to have made at least two cameras, in the 1930s^[1]:

• Jupiter - a very simple plastic 127 film camera;
• Merlin - a sub-miniature(20x20mm frame) cast metal camera.

1. ↑ McKeown, p.936

LinksEdit

• United Optical Instruments Merlin at www.collection-appareils.fr