Canon classic lens 50mm/F1.4 with Leica 39mm screw lens mount, serial number 15697, made in Japan in 1950's. This lens is in good condition, but having slight haze on inner rear lens glass which you can confirm in 9th photo. The haze part is around edge on one of lens which doesn't affect much on photo result.
Please see testing photo result on 10, 11, 12th photos. Helicoid movement is good condition, and aperture works finely. The item "Canon Lens 50mm/F1.4 Leica 39mm mount 15697" is in sale since Thursday, May 7, 2020. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses".The seller is "yawataboy" and is located in Chiba. This item can be shipped worldwide.