Panama, 1949, 1c on 10c Four Freedoms with "Lucha / Contra / El Cancer" overprint, block of 40 with top selvage showing number "14", left column missing overprint creating error pairs, o.g., slightly tropicalized with some gum bends, some separations, F.-V.F. and unusual. Scott Nos. RA29, RA 29 var.  Estimate $300 - 400. $0 (Image)