1870, 10¢ brown, singles on two covers from the Millet correspondence to Costa Rica, each with magenta "San Francisco Cal Paid" exchange cds dated Nov. 3rd 1870 and Jan. 3rd 1871, later with stains, F.-V.F. Scott No. 150  Estimate $200 - 300. $0 (Image)

1870, 10¢ brown, H. grill, neat town cancel, centered low with evenly balanced margin around, rich brilliant color and sharp proof-like impression, Very Fine, a lovely grilled 10¢ Banknote; with 1990 P.F. certificate. Scott No. 139  $850. $0 (Image)