Sheet 268 New Series, Drift. 1” (1904). Reading, base map 1896, geologically surveyed 1898. 1:63,360 scale. Colour print. Dissected and mounted on linen, 43 x 55cm, and folded between blue marbled card covers, 22 x 14cm.  Clean, bright colours, trimmed close to left border. Library stamp in lower left corner. Transitional from Old to New Series, as printed without horizontal section which is characteristic of New Series but published separately in Old Series. In very good condition. Published before the introduction of the National Grid.