cover 1869 (25 Sept.) envelope to Switzerland, sent via Trieste, bearing 24c. on 8a. used in combination with 1867-72 12c. and 24c. tied by Penang "D17" duplexes and showing rate marks in red and blue crayon, three Swiss c.d.s. on reverse; a fine and rare, three-colour franking. Photo
cover 1869 (25 Sept.) envelope to Switzerland, sent via Trieste, bearing 24c. on 8a. used in combination with 1867-72 12c. and 24c. tied by Penang "D17" duplexes and showing rate marks in red and blue crayon, three Swiss c.d.s. on reverse; a fine and rare, three-colour franking. Photo

Details
cover 1869 (25 Sept.) envelope to Switzerland, sent via Trieste, bearing 24c. on 8a. used in combination with 1867-72 12c. and 24c. tied by Penang "D17" duplexes and showing rate marks in red and blue crayon, three Swiss c.d.s. on reverse; a fine and rare, three-colour franking. Photo