Over 70 new Russian and Soviet maps have been added from the map collection of Geography Department of the Humboldt-Universität zu Berlin. There are some 40 sheets of the one-verst map (1:42,000) and several sheets of the two-verst map (1:84,000), as well as several sheets of the Soviet 1:25,000 map. Please note that while the dating is accurate, it refers to the date of print, but the map can display information and situation several dozens years prior to that date! This refers, in particular, to the one-verst sheets covering the (then) Polish eastern borderlands (Kresy), which  are based on Tsarist survey data, Polish 1:100,000 maps by W.I.G. and intelligence reports, rather than, for obvious reasons, the latest field survey information.