1861 Panama To France. Unpaid cover with "Panama Transit, Sp 6, 1861" date stamp, "G.B./2f 87 5/10c" accountancy marking listed in Salles (Raymond - Encyclopedia de la Poste Maritime Francaise) as used from origins of Chili and Peru, "12" decimes due handstamp per 7.5 grams, Very Fine. Estimate  $200 - 300. Sent via Royal Mail Steamship Line - per steamer Tamer, departing Colon on September 7th and arriving in St. Thomas on September 14th. Then on Steamer Tasmanian, departing St. Thomas on September 14th and arriving in Southampton on September 30th. $0 (Image)