[Eastern Russia] "Tartaria sive Magni Chami Imperium"

Engraved map with coloured outlines, verso with German text, Amsterdam, J. & G. Blaeu, c. 1640, 38.5 x 50 cm.

Trifle tanned, middle fold torn (partly taped). Blaeu's famous map of the region from the Caspian Sea to the East China Sea, with the Great Wall clearly marked.