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TRIAL CASES, FRAMES AND REFRACTOR HEADS
prism trial case
Theodore Hamblin Ltd
Europe: United Kingdom, England, London
Mid-late 20th c.
case: 50 x 160 x 112 mm
Set of eight pairs of rimless trial prisms. With specialist wire metal trial frame with wrap-round eye rims and bowed straight sides. Contained in black skin-covered hinged wooden case lined with blue silk and velvet.
Gift of the Glasgow Eye Infirmary, 2003