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Hand-held near vision test
PHOTOGRAPHS
photograph (b+w)
North America: USA
1955
paper
overall: 236 x 138 mm
2001.113
PHOTOGRAPHS
photograph (b+w)
North America: USA
1955
paper
overall: 236 x 138 mm
Modern black and white photograph of 19th c. wooden hand-held near vision test consisting of a paper test chart wrapped around a turned cylindrical head.
2001.113
American Optical Co (Bureau of Visual Science), 1955