Sheet  67N Drift, Old Series 1". 1881. First drift edition. Norfolk: Great Yarmouth.  Hand-coloured engraving, 72 x 55cm (half folio sheet format). Topography date too faint, geology 1881, issued 1909, coloured 1911. Single fold, linen-backed faint plate marks, library stamp in upper left corner. Slightly soiled and age-toned, but pastel colours clear. 85% sea area. Legend and summary borehole log in sea area. Unusual layout combines what would have been sheets 67NW and 68SW, produced from electrotype for the geological survey, not part of standard Ordnance Survey layout. In good condition.