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Younger's seamless solid downcurve bifocal lens demonstrator instrument / The Younger-22 lens
MANUFACTURING AND DISPENSING EQUIPMENT
bifocal lens
1970s
plastic; leather
1999.5524
MANUFACTURING AND DISPENSING EQUIPMENT
bifocal lens
1970s
plastic; leather
Younger's seamless solid downcurve bifocal lens demonstrator instrument. PRO-shape lens mounted in white translucent plastic frame with stem leading to leather pouch case. Press stud fastening and gold inscription to case.
1999.5524