, showing oval f.a.c., Trinidad double-arc d.s. (4.10), "LIGNE A/PAQ. FR." double-ring d.s. (15.10) and handstruck "12" (decimes) with, on reverse, "TRINITE/PAQ. FR. C. NO1" octagonal d.s. (10.10). Very scarce. Holcombe Opinion (1991). Salles 1401/1, 1532. Photo" /> cover 1872 (1 Oct.) entire letter, with illustrated letter heading, from Ciudad Bolivar to Paris, carried on the Orenoque River to agent W. Ehlers in Trindad who posted it in the British Post Office, marked<I> "pr French Stmr via Nazaire"</I>, showing oval f.a.c., Trinidad double-arc d.s. (4.10), "LIGNE A/PAQ. FR." double-ring d.s. (15.10) and handstruck "12" (decimes) with, on reverse, "TRINITE/PAQ. FR. C. N<SUP>O</SUP>1" octagonal d.s. (10.10). Very scarce. Holcombe Opinion (1991). Salles 1401/1, 1532. Photo | Christie's