I got this kit from Ebay for a few bucks, it came in a ziplock bag (the box being lost to the ages) mostly to fill out the list of Polish aircraft. It is a kit of extreme simplicity. My copy was molded in a weird semi-translucent plastic that made assembly interesting. The kit has a host of questionable details (or lack of them) and the fit was dodgy at best. The kit does date back to 1979 so I am willing to cut it some slack.
The PZL 50 was to be the replacement for the PZL 11 but was delayed by changing government requirements and problems with engine development. Only one prototype ever flew and it wasn't armed or equipped with a radio. If it had been possible to equip the PZL 50 with a more powerful engine the performance would have been a near-match for the early versions Bf-109. As it stands the aircraft is just an interesting side-note in the history of pre-war fighters. Of course there is a Wikipedia page



