USC Tri-Matic Electric Eye 127

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image by Jeff Wyonch (Image rights)

One of the more advanced models from United States Camera is the Tri-Matic Electric Eye 127. It is similar to the USC Comet 127 in its case style, 4×4 cm image format on 127 film, and integrated flashbulb reflector alongside the lens. But the "electric eye" provides autoexposure and the lens permits scale focusing. After setting the lever below the lens to the "Flash" setting, the lens aperture is coupled to the focusing distance to yield the correct exposure. It's not clear what the third of the "Tri-" matic functions would be.

This seems to be the model sold by Sears as the Tower Automatic 127, which may be more commonly seen than the USC-branded version.