(California Penny Post Co.) California Penny Post Co. (2¢) City Delivery. Penny Postage Paid, printed frank on fresh printed San Francisco form address cover, clear strike of "Penny Post Co., San Francisco" circular handstamp, reverse with printed mailing instruction at bottom, Extremely Fine, an Outstanding Example of this Extremely Rare California Penny Post Local Entire, pictured in Coburn's Letters of Gold (pg. 66), ex Clifford, Golden. Scott No. unlisted  Estimate $2,000 - 3,000. $0 (Image)

(California Penny Post Co.) California Penny Post Co., 1855-59, 7¢ black on buff, Impressed on 3¢ red (U10) on buff Nesbitt entire to San Francisco, cancelled by clear strike of "Penny Post Co., Sacramento" circular handstamp; edge faults at right into indicia and refolded at top, F.-V.F. appearance. Scott No. 34LU11  Estimate $750 - 1,000. A RARE USE OF THE PENNY POST CO. 7¢ ENTIRE CANCELLED WITH THE COMPANY CIRCULAR HANDSTAMP. $0 (Image)