Lot
1179 
1851, 12¢ gray black, used with 1¢ blue, type IV (9) horizontal pair and two 3¢ dull red (11) singles, all tied by three strikes of "San Francisco Cal. Aug. 5" cds on blue 1856 folded cover to Philadelphia Pa.; vertical file fold affects left 1¢ and 12¢ stamps, some slight edge wear, Fine, An attractive usage combining all three denominations issued in 1851. Scott Nos. 17 Estimate $750 - 1,000.