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The Modern Phorometer
ARCHIVAL ITEMS
instructions; brochure
American Optical Company
North America: USA, Massachusetts, Southbridge
October 1940
paper
overall: 235 mm x 157 mm
2012.169
ARCHIVAL ITEMS
instructions; brochure
American Optical Company
North America: USA, Massachusetts, Southbridge
October 1940
paper
overall: 235 mm x 157 mm
Instructional brochure (outer cover only) for a brand of automatic refracting unit. A5 format printed in black and silver on thick green paper.
2012.169
Gift of K. A. Stephens, 2012