I have a rare Alpa Kern Macro Switar 50mm f1.8 lens. Yes, it is completely black paint version.
The glass is spotless in pristine condition. The barrel is very clean except very faint paint loss near the edges where a hood attaches.
It comes with front and rear caps.
I am asking $2200 net to me. Can meet in person either in NC or New York close to I-95.