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simple trial frame
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial frame
20th c.
steel
width of front: 110 mm

Simple skeleton-type double drop-cell trial frame. White metal frame. W-bridge. Engraved axis scales with concave indentation to underside of each rim. Thin straight sides with rounded spatula ends.


2011.54

Gift of Mr Brian Mitchell, 2010



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