This Industar was made in 1964 only, in a very limited number.
The optical part was possibly a trial before Fed used it on their own cameras. Probably it is the first Russian lens to be made with lanthanum coating. The first ones don't have the "L" on the beauty ring, as it seems.
The body itself is original and cannot be seen on any other lens.
Known serial numbers:
64073 _____ without "L" ________ seen on the net.
641153 ____ with "L" ___________ seen on the net.
641176 ____ with "L" ___________ Jacques.