Leica Summicron-M 2/50mm Prime lens

Leica Summicron-M 50mm f/2 – Version IV (11819), Leica M mount, black color.
Original Leica Summicron-M 50mm f/2 lens, Version IV, with serial number 3516031.
The lens presents itself in excellent cosmetic condition, with normal, minimal signs of use compatible with its age. The rings are well preserved and show a nice original finish.
The lenses do not have scratches and the glass appears clear. There is a small amount of internal dust, normal for a lens of this age and visible especially when checked against the light. No mold or fungus detected.
The diaphragm and focusing are smooth.
Complete with original Leica cap.