How to get URL link on X (Twitter) App
https://twitter.com/WeHaveWaysPod/status/1772560394021716163... and you'll find that index and maps like this one. (Terelle, 1:25,000. GSGS 4228) on Mapster. It's not an intuitive site. It's - a bit clunky. But it's an excellent source for this kind of mapping.
https://twitter.com/thinkdefence/status/1564976402394480643The whole set comprises a six-sheet military map, prepared by RfL in September 1938, as Germany was getting ready to invade Poland. Covers the bit roughly between the Baltic and Racibórz. Low res here, which may be enough, but super-uber-mega res link in the Alt-Text.