Two copper engraved maps depicting the northern parts of Asia. First (4 x 6") is a charming sheet by Alain Manesson Mallet, Paris, 1686, with five little maps. A top is a map of the whole region with the other maps showing various regions. Second (12.5 x 8.5") is Rigobert Bonne's simple map of the Russian Empire. Published in Paris, circa 1762.