Mexico, 1892, 5p Carmine, block of 4, neat Mexico town cancels, natural s.e. at left, F.-V.F., the only known multiple of the 5p carmine high value. Scott No. 228  $3,600 for singles. $0 (Image)

Mexico, 1892, 5p Carmine, Unwatermarked, blue oval town cancel, rich color, thins, Fine appearance, the unique example of the unwatermarked 5p high value of the 300 issued; signed Forbin, with 1981 MEPSI certificate. Scott No. 228 var.  Estimate $500 - 750. $0 (Image)