Archiwum Map WIG

This site is a digital archive of maps produced by the Wojskowy Instytut Geograficzny, the Polish Geographic-Military Institute, which existed between 1919 and 1939 and produced some very good topographic maps of the country. Lots of scans here, all very large files, of maps at 1:25K, 1:100K and 1:300K scales. Via Maps-L.