Short-code plate in Poland. US-sized plates can be ordered for vehicles imported from Japan or North America only if there is no room for full size European plate. : r/LICENSEPLATES
Where is Poland... 10 things You SHOULD know about Poland | STUDY IN POLAND - GO POLAND!
Country Codes List - ISO ALPHA-2, ISO ALPHA-3 and Numerical Country Codes - Nations Online Project
Code Name: Challenge | Rochester Polish Film Festival