Classic beautiful Summicron Rigid in excellent condition. Focus & aperture smooth as butter. Aperture had distinct and firm clicks on each stop, focus smooth from infinity to minimum focus distance with perfectly functioning infinity lock. Coating perfect, strong blue/purple tint. No haze, fungus, separation of any kind, not even trace. Rear lens surface perfect, front 99% perfect, there is a minuscule imperfection (second image). Body in 9/10 cosmetic condition, almost mint. Clean on the inside, trace of atmospheric dust. Matching optical group and focusing body, serial ...873. Comes with Leica chrome lens cap and Leica rear cap. The Leica Red Dot is missing, I have ordered a new one, OEM part.
EDIT: Forgot to add, aperture blades clean of oil.