Leitz OUEPO.
Guter Zustand / bon état / good condition.
The OUEPO code and 16474 designation suggest it’s a lens adapter or focusing mount, possibly part of the Visoflex system or used to attach specific lens heads—like the Leitz Telyt f=20cm—to camera bodies or bellows.
-summilux-m-1-1-4-35mm-made-in-germany)
