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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Two magnifiers built into one compact handle with a diameter of 50 mm made of acrylic.
Brass dial head 40 mm diameter, divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on tripod stand, distance between legs 40 mm.
Sizrs are mentioned below:- Screw pitch 1 mm Screw pitch 0.5 mm
Metal holder with sides grooved to hold lens up to 50 mm diameter on wooden support.
Rectangular, clear, all sides polished
Fitted in plastic frame Single, x4 Double, x7 Triple, x10 Single, x4, with leather pouch
Optically worked, back silvered, with protective coating.
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