(Fort Geo.(rge) Isld, Dec. 6, 1851). Dateline on folded letter to St. Augustine, Fla., cover with red "Mayport Mills, Fla., Dec 7th" cds and matching straight line "Free" handstamp and manuscript "K.B. Gibbs P.M." free frank, letter written by postmaster regarding the selling of lands including Fort George Island; file folds, Very Fine, one of two recorded usages of the "Free" handstamp from Mayport Mills, ex Rice. Estimate  $300 - 400. $0 (Image)