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).
Glass, one each double convex, Plano – convex, concavo – convex, convexo – concave, Plano – concave and double concave lens, in box.
Sizes in 38mm and 50mm.
Lenses, Set of Six (50mm).
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