Hello there,
The writing is "STAHANOVIST" Stahanov was the first Russian worker to brake the working records.
Like the work share in a factory would be 4 engines/day/worker; just an example - I do not know his area of expertise was
and this guy (S.) would make like 100 engines, which is a great achievement you would have to say.
So the Romanians first took this award from the CCCP and later on created a separate thing - "Fruntas in ... " i believe it is, but I'm not sure.