Sheet 41, Old Series1”.(1845) topography 1831, geology 1845, Hand-coloured engraving, 68 x 98cm, dissected and mounted

Sheet 41, Old Series1”.(1845) topography 1831, geology 1845, Hand-coloured engraving, 68 x 98cm, dissected and mounted on linen folding to 22 x 12.5cm between marbled soft card covers with label clipped from index map. Clean, age-toned, colours bright, cover worn. pencil notes in margin, linen folds sound. In good to very good condition. Extends from Laugharne in the southwest corner to Llandovery in the northeast.

About the England & Wales One Inch Old Series

The Geological Survey of England and Wales used the Old Series of the Ordnance Survey topographic map at a scale of one inch to the mile as its basemap, initially. These engraved basemaps were published and revised between 1805 and 1885; the sheet sizes varied and the layout and numbering system were eccentric. The Old Series geological maps were hand-coloured and without geological sections, which were published separately. The GS of E&W published the Old Series from 1850 to 1900, when it switched to the colour printing and the New Series one inch maps. However, old stock of the Old Series continued to be issued, hand-coloured, until the 1930s.

See also: Index Map for England & Wales One Inch Old Series.