King of Prussia (born 1688) from 1713 until his death in 1740. LS in German, one page, 7.25 x 9, August 1739. An untranslated letter sent from Potsdam. Removably presented on a collector’s sheet with images and historical information, including a vintage postcard and postage stamp. Intersecting folds (vertical fold to first name; edge separations) and adhesive remnant to blank lower portion, otherwise fine condition. R&R COA.