IBG Models has published details of the marking options for the 1:72 scale PZL P.11B early [K-series]
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/pzl-p-11b-k-series-marking-options
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/pzl-p-11b-k-series-marking-options