Model No: AGN-1671
Comprising a small wooden frame of size 5″x3″x3″ with a matt blackened inside and provided with a glass plate 4″ x 3″ x 1/8 mm mounted at an angle of 45° to reflect the light downwards on to a Plano convex lens of 50mm diameter having 100 cm focal length which rests on a plain glass plate 3″ x 3″x3/8 on the base of the box.
