"26:16" 20x Rate. Manuscript rate (26dwt 16gr, or 80p) on folded cover to Fredericksburg Va., docketing reads "1780 Andrew Crawford 30 April", vertical file fold and some toning, otherwise Very Fine, a rare example from the 20-times rate period (12/28/1779 to 5/5/1780),only four or five covers recorded. Estimate  $750 - 1,000. $0 (Image)