Cogwheel, four bold strikes tie 1¢ blue (63) and 3¢ rose (65), pair and single, on cover to Brooklyn N.Y., matching "San Francisco Cal, Mar 6 1862" cds, prepaid the 10¢ West Coast rate; small corner tear and stain, F.-V.F. Skinner-Eno No. GE-P 30  Estimate $200 - 300. $0 (Image)