Calais, Defence Overprint [Operation Undergo], 12 September 1944
Description
Clearing of the Channel Ports--Operation Undergo. Overprint produced by the Royal Canadian Engineers. This map was originally held by the Department of Defence, and was acquired by the Laurier Military History Archive (LMH) from the Directorate of History and Heritage, Government of Canada, in the 1990s. Digitization and georeferencing was performed at the University of Waterloo.