3¢ Brownish Carmine, Type II (11A), large margins to clear including part of adjoining stamp at top, tied by "STEAM 5" straightline handstamp applied at St. Louis on May 1852 blue folded letter and prices current from New Orleans to Robert A. Barnes in St. Louis, Missouri, sender's routing instructions "Via Cairo" (Cairo, Illinois), red negative double-circle "Steamer Compromise" and triple-oval "Steam Boat Southern Belle" name-of-steamboat handstamps
Extremely Fine--a remarkable cover combining two different name-of-boat markings.
The Compromise was built in 1851 and ran the New Orleans to Natchitoches route on the lower Mississippi River. The Southern Belle carried mail on the Mississippi River. Both vessels were involved in carrying this letter north from New Orleans to St. Louis. It crossed the boundary between the lower and upper Mississippi River at Cairo, Illinois. Covers with two different steamboat-named markings are rare.
Ex Eugene Klein, Fisher E. Simmons, Jr., and Louis Grunin. Illustrated in Milgram, Vessel-Named Markings on United States Inland and Ocean Waterways, 1810-1890 (p. 648). With 1987 P.F. certificate.