San Francisco Cogwheel Cancels, 1861-69. Terrific accumulation of virtually all San Francisco cogwheel cancellations, on 1¢ to 90¢ stamps, including 119 singles, 14 covers and 2 entires, of particular note are the 5¢ buff #67 with some faults but very fine appearing, with 2005 P.F. certificate; another 5¢ buff; and a used 90¢ #72 with 2004 graded P.S.E. certificate (VF 80, SMQ $500) sound with lovely color and centering; also present are 14 30¢ including 1 cover to Germany, 16 24¢ in various shades including 1 cover to Ireland; couple Dues and a 5¢ Hawaii; cover with 3¢ pair with Downieville cogwheels; most impressive array of this very popular and collectable cancel and well worth the estimate to the specialist. Estimate  $5,000 - 7,500. $0