Hermagis Apl. set Brass lens

Hermagis brass lens set: Optical Factory, by order of the S.D.G. Paris No. 27387

This set from the basic housing with the inscription Hermagis, consisting of six lenses and 9 diaphragm blades numbered:
3/5, 1, 2, 4, 8, 15, 32, 64, 128.

Lenzen (photo 2)

From bottom left to top right inscription.
1. App. no. 5 (the edge differs from no. 2)
2. Application No. 5 (differs from No. 1)
3. Apl. no. 7 crack in lens (very difficult to see photos 10 to 15; photo 13 crack clearly visible)
4. G.A. no. 7
5. G.A. no. 6
6. G.A. no. 5

Photos from 16 onwards are of the last three lenses, showing both the front and back sides.

Beautiful and rare set of lenses.