Empress of Russia, 1762–96. She murdered her husband, Peter III, and proclaimed herself Czarina in 1762. Ink signature, “Catherine,” on an off-white 7 x 4 page, dated June 1790. In fine condition, with pencil notation to top right corner and a slight diagonal crease through first letter of signature. COA John Reznikoff/PSA/DNA and R&R COA.