Haven + Cos Express and "Free to N.Y.". Red brown manuscript endorsement on 1850 stampless folded cover from San Francisco to Philadelphia, entered the mails in New York with "New York, 11 Feb, 5cts" red integral rate cds, Very Fine, one of the very few recorded covers from this Express Company, ex-Vogel, Haas and "Edwards", illustrated in Coburn's Letters of Gold (page 194). Estimate  $400 - 600. $0 (Image)