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British American Optical Co Ltd; Association of Optical Practitioners
Europe: United Kingdom, England, London EC1
overall: 310 x 183 mm
Test chart. Non-Illuminated. White cardboard with black border and hanging cord. Bears three sample car number plates including old-style white on black, black on white and black on yellow plates designed to replciate actual plates viewed from 25 yards when the chart is hung at six metres.
Gift of Mr Frank Barraclough, FCOptom, 2008