Baltimore, Md., 1850-55, 1¢ blue. Full margins, tied by manuscript cancels on 1852 folded letter sheet to New York, in combination with 1851, 3¢ brownish carmine (clear to large margins) tied by neat grid cancel with matching "Baltimore, Md., Aug 19" cds at center, Extremely Fine, a choice Baltimore carrier usage; with 2000 P.F. certificate. Scott No. 1LB3+11  Estimate $750 - 1,000. $0 (Image)