Rare Antique New Universal Atlas, Johnston (UK).  Global, particularly good British Isle maps - very detailed and with a city map of London.

The actual copyright date is not present, but I'd guess it's in the 1924-1936 range. In other words, between the wars.  (Leningrad, which was renamed from Petrograd in 1924 is there, while Italian East Africa, created in 1936, is not.)

Will be packed carefully.