Nine plates are included, the last of which an impressively oversized, folding map in French and Russian showing the river route from Yakutsk to Okhotsk; the map is labelled, “Par un Anglois nommé William Walton qui en envoya l‘original à Mr. Visher à Petersbourg le 15 fevrier 1743” and “Calquée d‘après l‘original et gravée par E. Dussy.”

•  Sabin 77608. Mottled calf, worn and cracking, covers framed with triple gilt fillets; spine with five raised, abraded bands and gilt-stamped, chipped floral devices in compartments. Front joint cracked and back starting, with cords holding. Some loss of leather to corners, base of spine.  Bookplate of the Bibliotheca Sobolewskiana.  Edges marbled; most pages clean, a few with varying offsetting.