A group of Tolkien fans in Poland has started an excellent project to gather and document all of the various editions of his works in their country. They've shared with me an initial draft of their google spreadsheet (mostly translated into English) with a ton of information.

I'll be working to incorporate this information into the TCG Guide moving forward, but the sheet itself is the primary source and should be very useful to anyone interested in identifying and collecting Polish works.

https://docs.google.com/spreadsheets/d ... DZb7_GBm3xU#gid=489043650

Thank you very much to Katarzyna Bożenda and team for all of your hard work!