United States, Stampless Covers, 1800-1850. Substantial horde of 450+ stampless folded letters, myriad of postmarks, rates, destinations, markings, etc; including Mexico & Cuba, Panama, incoming from Europe, forwarders, many ship and steamship markings, Express Mail, Railroad, free franks including Congressional, some straight line including 1788 Richmond during Confederation period, and much, much more; condition well above average for most, close inspection recommended. Estimate  $2,000 - 3,000. $0