Comstock's City Letter & Parcel Delivery, San Francisco, brown local express company imprint, used with printed Wells, Fargo & Co. Paid frank (Haller WF-E), on 3c Red on buff Nesbitt entire (U10), indicia uncancelled, also clear blue oval 'Wells, Fargo & Co. Express, San Francisco', to San Juan Cal., minor soiling, otherwise quite fresh and nearly very fine, rare, this is supposed to have been a short-lived local delivery company with connections to Wells, Fargo, illustrated in Nathan where it is called 'a great rarity'