question about KMZ Industar 50 ?

I have an early chrome Industar 50 which is non-click-stopped. Does anyone here have one that's chrome or black but HAS click-stops?

AFAIK, all I-50 had no click stops. In fact the only FSU LTM lens with click stops was the Industar-61L/D. There may be some I-26M with click stops too, and these were the ones made in the I-61 barrel style. Even among I-61, there were some made without click stops too.

There was a black I-50, which is the same in specs as the chrome I-50. These were marked "Industar-50-2" and were supplied with Zorki-4K in the 1970s.

Thanks, that was helpful.