Asahi PENTAX....Super-Takumar 50mm f/1.4. It's a  "Spotmatic with Super-Takumar 50mm 1.4....   7-element"

UNTESTED. Very old. In the case it's taped on and has an extra battery inside. Sold as is. No returns. No. 680587 S1A....

Some components are NOT WORKING.