Second king of Prussia and one of the greatest of the 18th century monarchs; an extremely capable soldier who nearly doubled his country’s area by the end of his reign, he also encouraged arts and commerce, and rebuilt the economy after the seven years war. LS in German, one page, 7.5 x 9, November 29, 1781. Untranslated personal letter sent to Captain Von Goltz. Letter comes in a Goodspeeds Autograph sales folder, the legendary Boston bookshop where it was once offered for sale. In fine condition, with closely trimmed edges and a bisecting horizontal fold. COA John Reznikoff/PSA/DNA and R&R COA.