A very rudimentary and crudely printed bus map from Beijing in the early 1950s. Identifying landmarks seem to consist solely of the city’s ancient inner and outer fortified walls (which were about to be mostly torn down by this time) and what looks like the outline of the Temple of Heaven towards the bottom of the map.

The original forum post (see source below) says that some of the routes shown here are still numbered the same today and follow very similar routes, such as the 5, 9, 14 and 23. This despite an absolute explosion in the service in the intervening years: in 1956, there were just 27 bus and trolley bus routes. By 2011, the state-owned Beijing Public Transit Company operated 948 routes with almost 24,000 vehicles!

Source: mashke.org, a Russian forum for tram enthusiasts)