1855 (Apr. 2) Saint John, N.B. to New York, N.Y., folded letter with New Brunswick cds and matching "10" rating for cross border rate, "Express Mail, Saint John, Apr 5" route agent cds, put onto the Admiral, red "Favor's Express" cachet, Extremely Fine. Estimate  $4,000 - 6,000. A REMARKABLE STRIKE OF THIS RARE FAVOR'S EXPRESS CACHET. The intaglio cachet of Favor's is rarely found with such a crisp strike. This example is an exception. $0 (Image)