1851 (Jul. 1) Mobile Ala. to Providence R.I., blue folded letter with blue "Mobile Ala. Jul 1" cds and matching partial "Way 6" fancy rating handstamp, Very Fine. Estimate  $300 - 400. A SCARCE USE ON THE FIRST DAY OF NEW RATES AT THE UNPAID 5¢ DOMESTIC RATE PLUS 1¢ WAY FEE. $0 (Image)