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Scalae Typographicae Birkhauseri
TEST CHARTS
near vision test
Birkhauser Verlag; Ryser
Europe: Switzerland, Basel
Mid 20th c.
card
overall: 210 mm x 103 mm
2013.569
TEST CHARTS
near vision test
Birkhauser Verlag; Ryser
Europe: Switzerland, Basel
Mid 20th c.
card
overall: 210 mm x 103 mm
Two reading test charts on white card, one in German, the other ('No 2') in French. Letter sizes featured: 1.5, 1.25, 1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1. (the last line on each card comprising numerals). Card No 2. bears sticker of an optician from St. Gallen.
2013.569
The Norman Bier Collection, transfer from City University, 2013