Telescope lens made by Steinheil in 1907
It's a rare triplet well corrected for chromatic aberration.
Very well made of brass.
54mm f:4 Steinheil Triplet SN 67 383
On the lens cell is market in handwriting: M 393 and N903
Brass lens cell
Diameter of the lens cell is 62,17mm
More information on the Anamorfose website
