[WILSON, Benjamin (1721-1788).] Engraved document, 29 December 1776. A certificate of membership for noted British scientist Benjamin Wilson in the distinguished St. Petersburg Academy of Sciences. 1 page, folio (12½ x 17.14 in.), matted and framed with wax seal. Signed by the director of the Academy, Sergey Domaschnev. [With:] Autograph manuscript, n.d. listing notable Russian battles from the 18th century. 2 pages, oblong (5¼ x 11½in.), each with elaborate, watercolor designs along edges. Matted and framed. Together 2 items. (2)