Map of Hong Kong 1945

This 1945 map of Hong Kong is one of the most accurate maps drawn at the time. Published by the War Office during the 1930s (first edition), it saw its first revision in 1938 (second edition). Known locally as the three-year and eight-month period, between 1941 and 1945, Hong Kong was invaded and occupied by Imperial Japan, and the map did not received any updates until it was finally republished again after the Second World War. The only change against the second edition was the grid reference. 

This is an HM20C map, the go-to map for hikers and scholars in Hong Kong. Drawn on a 1:20,000 scale, the map was printed on 24 sheets, each covering a section of Hong Kong's territory. This particular sheet, number 19, depicts the area of Victoria Harbour. It's worth noting that the contour lines are in 10-metre intervals, instead of the 20-metre intervals we are familiar with today. Making this map even more detailed than some of the modern physical maps today. 

As this map was extensively used by many scholars in Hong Kong and the United Kingdom, there are many surviving copies with scholar's notes and added information. But there aren't a lot of original unedited copies left, and this is one example of the untempered version.