Steamer Echo. Perfectly struck vessel-name marking in arc over straight line with shaded letters and ornaments all within a rectangle with notched corners on blue 1851 folded letter datelined "Jefferson" to New Orleans, postmarked on arrival red "New Orleans" cds & matching "Steam 10" handstamp, an Extremely Fine gem, a scarce and beautiful Mississippi and Ouachita Rivers Steamboat marking, pictured in Milgram, ex-Jarrett. Milgram No. 379  Estimate $500 - 750. $0 (Image)