complete with 50 maps, numbered 1, 3, then 5 to 52, corresponding in quantity to the published index numbered 1, 2, then 5 to 52, engraved maps, the first two folding out to 485 x 420mm. and 530 x 430mm., respectively, these with faint offsetting and with traces of erased library stamp on verso, the others each c.205 x 260mm., or the reverse, owner's inscription of Robert Salusbury Cotton, dated 1773, on title, contemporary half-calf over marbled boards, corners and edges worn, upper board together with title and 2 folding maps detached, oblong 4to, Robert Sayer and Carington Bowles, 1768.