Three new sets of maps covering Scotland and Great Britain during the 20th century at the regional or medium scale are highlighted in the April NLS Newsletter.
NLS comments that these are particularly useful for showing the development of reservoirs and forestry, as well as new roads, railways and airports. Some were specifically made for air navigation by civilians or the Royal Air Force, and another set was captured by the Germans and re-issued for the Luftwaffe in 1939-40.
Maps website updates
OS Half-inch, Scotland, Outline Edition, 1942
OS Quarter-inch, Scotland, 1901-1960
OS One-inch, Great Britain, 1952-1970