Mailed at Still's N.Y. Bookstore, San Francisco Sep 5. Mail bag operator datestamp on the back of cover to Illinois, franked with 1851, 1¢ blue, type IV + 3¢ dull red, three single tied by "San Francisco, Cal., Sep 5" cds's of same day, cover edge faults, an Extremely Fine strike, scarce handstamp of John H. Still, the first book dealer in San Francisco, who also served as a mail expediter. Scott No. 9+11  Estimate $500 - 750. $0 (Image)