Zeiss Ikon Contaflex rear lens cap (Pro-Tessar front lens)

Rear lens caps for Zeiss Ikon Contaflex for Pro-Tessar front lens parts.
Fits all lenses with Pro-Tessar Bayonet
I found none on the internet, so I made my own! 

There are 2 versions: with curved or sharpened inner top arc.

-curved one: with no supports it prints nicely on PLA and filaments that work better with overhangs
-sharp top: without supports print cleanly with PETG, and other similar

It's best to print them in orientation that files come with, with brim for stability

Both of them come with version with Zeiss Ikon logo and without it