Splendid sample. Actual test on my experimental analog sprocketless camera covering 36x45mm. Focusing is smooth, aperture snappy. Optics optimal. It would be mint, but someone painted the aperture ring.
Here another bit more used sample: https://www.ebay.com/itm/267667581117
To avoid double currency conversion fees i can list it in EUR € with substantial discount.
Shipping Worldwide: Priority, Tracking. EU 5-10 days, Rest 3-4 weeks.