London Calling

I have an old guidebook to London that was published during World War II. Actually i think it was probably published before the war but updated because there's a small insert piece of paper that explains that due to the "war-time difficulties", they cannot publish the full set of maps they usually do. There is one page map of central london and only one fold out city center map with the underground stations marked and the lines of the underground routes marked in geographical format, not in the stylized format you see now (when was that done? i know it was designed by an electrician i think). The map also has the main streets and thoroughfares on it. I can't imagine there would have been loads of tourists in London during the war, not with bombs falling randomly!

( the London Tourist, circa 1940 )