Glass Lenses Set of Six in Wooden Case - 50 mm dia., 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL) - Eisco Labs

Optics Lens includes 6 lenses. All lenses have been ground, polished faces and ground edges. All lenses are 50mm. Types

One of each: double convex, plano-convex, converging concave-convex, diverging concave-convex, double concave, plano-concave. Lenses are stored in wooden box with hinges and latch to keep lenses protected.