Octavo (175 x 105 mm.), nineteenth century half calf, marbled paper boards, blind ruled, spine with raised bands, red calf gilt title and date labels. With engraved title page, pp. 39, (27), (2), with 61 double page maps numbered to 60, the folding general map at the beginning being unnumbered. There are two maps numbered 19 and two 56. There are no maps numbered 22 or 50, each map identified in contemporary hand on verso, light waterstain to index leaves, one or two maps trimmed close, otherwise in good condition.