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simple trial frame
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
Europe: United Kingdom
Early 20th c.
steel
overall: 135 mm; side length: 157 mm
2023.480/2
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
Europe: United Kingdom
Early 20th c.
steel
overall: 135 mm; side length: 157 mm
Simple single drop-cell trial frame. Steel frame. C-bridge. Half-eyes with sprung-hinged clips to grip rim of lens. Straight sides with spatula ends (left side broken at joint).
2023.480/2
Transferred from the Economic Botany Collections, Royal Botanic Gardens Kew, 2023 (Ex Chelsea College School of Pharmacy)