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lens trier
TRIAL CASES, FRAMES AND REFRACTOR HEADS
lens trier
19th c.
tortoiseshell; glass
overall (closed): 30 mm x 138 mm x 36 mm
1999.2101
TRIAL CASES, FRAMES AND REFRACTOR HEADS
lens trier
19th c.
tortoiseshell; glass
overall (closed): 30 mm x 138 mm x 36 mm
Lens trier. Dark tortoiseshell. Comprises seven numbered sets of oval lenses (marked in halves from 1-4) and a handle. Handle decorated with two key symbols. Main pivot secured with a square nut.
1999.2101