I still have an Industar 22 with Cyrilic inscriptions, that I bought in near-mint condition 1958. The number is 7168057 - that looks as though the last two digits indicate the year.
That's just a coincidence. The last digits of the serial number never indicate the year in any soviet-made lens or camera.
However, there are some camera bodies and lenses in which the
first digit indicates the year of manufacturing (leaving off the century and the decade, so "7" could be 1957 or 1967). This is the case for many FED cameras.
One example I know of is FED-3. Single-digit date prefix for all early FED-3 with advance knob and for the first advance lever FED-3's until 1966. A FED-3 with serial no. 1.022.000 is made 1961, a FED-3 with serial no. 4.300.000 is made 1964. The other numbers after the first digit are just counted up from zero in this case. You can see the scheme clearly on
http://www.sovietcams.com/index.php?-413247904
For FED-3, the numbering scheme changed in 1967, these cameras have a two-digit date prefix 67. Starting with 1968, there was no date prefix at all on the FED-3 bodies.
Anyway, this is by no means the case with all Industar lenses, nor is it true for all FED or all Zorki cameras. Numbering schemes changed over time.
Some have one-digit date prefix, some have two-digit date prefix, some have no date prefix at all.