Sheet 103ne drift, Old Series 1". County Durham: Durham, Hartlepool, 1892. Hand coloured engraving
Sheet 103ne drift, Old Series 1". County Durham: Durham, Hartlepool, 1892. Hand coloured engraving. 38 x 53.5cm. Topography 1863, geology 1892, railways to 1882.Flat, linen-backed, close trimmed without loss of marginalia.neat library notation in upper right margin, old folds along map edge visible, marginal tear along old fold, pinholes in margin corners. Yellow paint blots on right margin and on headland. Sedgefield at south edge, east half of Durham city on west edge. In poor to fair condition.
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.