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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

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