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Test chart no 1937
TEST CHARTS
test chart
American Optical Company
North America: USA, Massachusetts, Southbridge
August 1942
cardboard; wood; glass
chart: 452 x 279 mm; frame: 550 x 368 mm
2000.46
TEST CHARTS
test chart
American Optical Company
North America: USA, Massachusetts, Southbridge
August 1942
cardboard; wood; glass
chart: 452 x 279 mm; frame: 550 x 368 mm
Test chart consisting of nine lines of letters, descending in size. Metal-reinforced suspension ring. Mounted and glazed in a modern cherry wood frame.
2000.46
Gift of Mr John Redwood, 2000