Description:
2.5-inch projection lens is mounted in a brass tube, 4 inches long. The tube interior is painted black.
A pencil drawing with the lens states that the lens is a Leica lens, and that the tube fits an SVE 4-inch projector. The handwriting is David Wheatland's. The drawing is on the reverse of an invitation to an exhibition opening at the Museum of Fine Arts, Boston in February 1956.