1868, 5 c. vermilion, tied by mute postmark to entire letter to France with combination franking Napoléon perforated 80 c. rose in horizontal pair; on reverse dispatch mark "BUENOS AYRES JA 28 67" of the British PO, also transit and arrival marks; on front tax stamps "10" and "GB 1 F60C"; a fine and scarce letter, certificate du Vachat