Sc. #36, 38, 1877 (May 4) cover mailed from South Zorra, Ontario to Kandy, Ceylon (East Indies) bearing 2¢ green and 5¢ slate green block of four cancelled by mute grids, dispatch spli ring at upper left; London PAID transit datestamp in red on front. A very rare 22-cent pre-UPU rate – 20¢ via Brindisi route and 2¢ Cunard surcharge.