Just for your info, and apropos of nothing, but something to ponder, PGR is an acronym that stands for the name of a collective farm in a Communist country. Interesting - which one? I didn't know collective farms still existed!
I once played high-school baseball in our town (named Kenyon), and our team was sponsored by the local police department. The initials on our uniform were "KPD"
I wore my jersey a few times when travelling with a group of visiting exchange students from Germany. Only at the end of their visit did they tell me they thought it meant "Kommunist Partie Deutschland"
In 1988 collective farms still existed. I had to look it up, and I was wrong in my original assertion. There were two types of farms in the Communist world: collective farms and state farms, called in the Soviet Union where the model originated kolchoz, and sovchoz, respectively. How their workings differed, I'm not sure, since many of the distinctions of the organizational structurse under Communism were bogus, when everything was in one way or another controlled by the almighty (and highly corrupt) Party.
Anyway, PGR was in Poland a state farm and the acronym stood for Państwowe Gospodarstwo Rolne, which means (I think) State Agrarian Farm.