Rollei Magnar 4 x 33 for astronomical photography.
This Rollei Magnar is produced between 1939 and 1941 for the Rolleiflex bayonet 1 camera. The total production was limited to 500 pieces, therefore this lens is very rare. A real treat for collectors!
Here shown on a Rolleicord Vb camera. This camera is not included. The lens number is 2450035.