For years, the best map I've been able to find of the Przechowko area (and, for that matter, for all of Polish Prussia) was the Royal Prussian State Survey (1:25 000) which can be found here (http://igrek.amzp.pl/mapindex.php?cat=TK25&listtype=standard&listsort=sortoption1) (see Schwetz 2576 and Kulm 2676 sectors). This is an amazing map, Schwetz mapped in 1905 and Kulm mapped in 1906. This is a composite of the maps with Przechowko Village marked by me as I've determined the boundaries to be.
Here is an earlier version of the Royal Prussian State Survey found at the Berlin State Library, here: https://kartenhighlights.staatsbibliothek-berlin.de/indexblatt/. Both Schwetz (1172) and Kulm (1263) in this series were mapped in 1873. Again, this is a composite of the maps with Przechowko Village marked by me as I've determined the boundaries to be.
