can anyone identify country of origin of this ammo?

[BushcraftBill]

http://imgur.com/a/2HAAK

got a spam can of 7.62x39 and it was in this box. i cannot figure out what country it is from. i do know it is corrosive though
thanks

edit i tried googling all combinations of the lettering on the box and cannot find anyting

edit 2, i found a peice of paper in the box that google translate says is polish, so i guess its polish ammo

 

[MosinNagantM44]

It is from Poland.

 

[Harry Callahan]

Yes it is. Polish manufactured. PS means that it's a 122gr FMJ bullet (pocisk zwykły)

 

[BushcraftBill]

thanks guys
i took pictures of both sides of the peice of paper if you were interested

http://imgur.com/a/jQKt3

 

[donor]

Made in May 1987.Not terribly old