Perfect condition.
Unique lens MACRO Industar-63 45mm f/2.8 from soviet camera Zorki-10 adapted on M42-mount for use on mirrorless cameras. Infinity is available. Minimum focusing distance 10 cm. The helicoid does not have a focusing stop, so be careful when focusing at a distance of less than 10 cm. When installed on SLR cameras, it can hook the mirror in the infinity position.