Periscope that allows the view of an obstructed field above or below the level of viewer. It is a Z shaped tube with mounted mirrors on both sides at 45° facing each other. Periscope, (Wooden).
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Rectangular, glass, back silvered, with protective coating
Metal holder with sides grooved to hold lens up to 50 mm diameter on wooden support.
Sizes :
Two magnifiers built into one compact handle with a diameter of 50 mm made of acrylic.
Free from air bubbles, all sides polished
75 mm long, 115 mm radii, 25 mm thickness
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