An assorted group of antique European maps and military plans, late 18th century., the collection of unframed copper engraved monochrome maps and plans, with 6 military plans including a 'Plan of the Siege of Tournay', after I. Basire engr., printed London c1750, and 9 maps including 'The Russian Empire, in Europe & Asia, with the northern discoveries between Asia & North America by Thos Bowen', C1789. Length 39 cm, width 50 cm and smaller