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O. T. May's 'STOCO' Trial Frame for Oculists
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
Standard Optical Company [USA]
North America: USA, New York, Geneva
1898
metal

Trial frame. White metal frame. Adjustable nose and P.D. Capacity six trial lenses. Double lens clips in front of eyes and single lens clip behind. Front clips revolve. White half-eye scales marked 0-180. Sliding sides dependent from brow bar, featuring round temple grips and terminating with wire drop ends.


1999.4610

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