Update Juli 2016 : Sold to a happy analog photographer from Leuven.
Due to a wrong placed order, I got an M42 mount version of this lens instead of a Pentax PK mount.
Thats why i’am selling the M42
The lens in the pictures mounted on the Samsung NX camera is the Pentax version,
the other one is the M42 with box, carrying bag and Russian manual.