USSR proof like sets

Hi,
what are the KM catalogue no's for Soviet Russia proof like sets (1974-1980)?

from #MS15 (1974) to #MS21 (1980)

Citeer: "glykan"​from #MS15 (1974) to #MS21 (1980)

​Thank you,So the mint sets and proof like sets are the same?

Yes they are the same and were issued in USSR from 1957 to 1991 (#MS1 to MSA33). There were also two proof sets with the same set of coins, issued in 1990 and 1991 (#PS3 and #PS4).

Thanks