Certificate stating that Francis Gordon, appointed Lieutenant in the Imperial Russian Navy, was invalided off by a certificate from the surgeon of the Royal Naval Hospital, March 1770 Certificate stating that Francis Gordon, appointed Lieutenant in the Imperial Russian Navy, serving on the Svatostaff, was invalided off by a certificate from the surgeon of the Royal Naval Hospital in Portsmouth, but was in that service a good officer and a good sailor and could resume his service if his health permitted, signed John Elphinston, 16/27 March 1770. In French 16/27 March 1770