Ordnance Survey, Sheet 110 – Stoke on Trent – OS One-inch to the mile, England and Wales, New Popular Edition, 1947. Surveyed 1916, and here with later revisions. Yellowish, neon-green woods, and fuzzy, all slightly nauseating.

The Internet Archive also has it as a small .JPG preview and a 30Mb .SID file. An obscure format, but the popular IrfanView image-viewer has a plugin (in the plugins pack) that can open these. The huge .SID turns out to be crisper at 66% view, and with much more natural colour.

The latter can also be made portable, for offline fieldwork.