San Francisco "40" Rates. Group of 10 covers, several variations of postal markings, including four with red San Francisco cds, one having integral "80" rate for double weight, two with integral "40" and another with "40" handstamp; and six covers with black markings, including integral "40" with manuscript "Paid", 3 with handstamp "40", another with boxed "40", another forwarded with red "5" handstamp; condition mixed, mostly F-VF or better, please inspect (no photo). Estimate  $300 - 400. $0