Three way approach perspective target maps Bremen

Date: 21 December 1940 Reference: AIR 14/345 (1) Creator: Air Ministry, the Royal Air Force, and related bodies Catalogue context: Target maps for experimental purposes Categories: Second World War Subjects: Air Force; Armed Forces (General Administration); Maps and plans Topics: Land and buildings; Military and war Period: Second World War Copyright information: Copyright clearance for publication is not required, except in the case of documents in third-party copyright. Usage terms: https://www.nationalarchives.gov.uk/documents/information-management/use-of-tna-materials.pdf