[Astigmatism test]

American Optical Company, Maker

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Maker and Role
American Optical Company, Maker
Production Date
Eye test for checking for astigmatism. Features a circular chart with the numbers 1 to 12 in a clockwise formation. Sets of three parallel lines lead to each of the numbers.
Physical Description
1 chart ; 35 x 35 cm
Accession No
Credit Line
American Optical Company. Unknown. [Astigmatism test], MSS-2019-55. Walsh Memorial Library, The Museum of Transport and Technology (MOTAT).

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