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Two Promotional Test Charts
TEST CHARTS
test chart
Hoya
Asia: Japan
20th c.
card
overall: 486 x 341 mm
2000.211
TEST CHARTS
test chart
Hoya
Asia: Japan
20th c.
card
overall: 486 x 341 mm
Two promotional test charts. Advertisements for the Hoya Company of Japan. Laminated card. Featuring both Landolt rings and Japanese characters of the Katakana and Hirigana writing systems (to be read in vertical columns). Explanatory text printed on reverse.
2000.211
Gift of Mr Philip Freeman, FCOptom, 2000