7.62x39mm New (to me) headstamp

Can anyone tell me who made these 7.62x39mm cartridges??? The number on the headstamp is 117 and 208. I have also seen an identical headstamp with 181 in place of the 117.

Current wisdom says these are Iranian.

Great head stamps Lew!

I also have the 208. I guess it could be a lot code or something.