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'Reader S' and 'Reader D' centration chart
MANUFACTURING AND DISPENSING EQUIPMENT
centration chart
Essilor
Europe: France, Paris
January 1984
plastic
overall: 210 mm x 210 mm
2010.747
MANUFACTURING AND DISPENSING EQUIPMENT
centration chart
Essilor
Europe: France, Paris
January 1984
plastic
overall: 210 mm x 210 mm
Centration chart. Thin white plastic square-shaped card featuring a schematic diagram of 'reader' lenses, printed in brown. Reader S = short transition for static activities. Reader D = smooth transition for dynamic activities.
2010.747
Gift of Mr Ronald Rabbetts, FCOptom, DCLP, 2010