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Trial lens case and frame
TRIAL CASES, FRAMES AND REFRACTOR HEADS
trial case; trial frame
Europe: United Kingdom
20th c.
leatherette; wood

a) Trial lens set consisting of 132 cylindrical and spherical lenses on a wooden rack. Includes four prismatic lenses and three occluders/pin-holes. Also a condensing lens. c) Also a trial frame with shiny white metal frame and half eyes with scales attached. b) The lot contained within black leatherette carrying case with hinged lid, two metal clasps and leather handle.


1999.2

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