Silver Tax, 1942, $30 Gray, Serial No. 761, unused, without gum as issued, well centered, bright color; small tone spot bottom right margin, otherwise Very Fine; with 2016 P.F. certificate. Scott No. RG102  $7,000. AN EXCEPTIONALLY RARE UNUSED $30 SERIES 1942 SILVER TAX STAMP. There are only 11 recorded examples of the $30 Series 1942 Silver Tax stamps in both used and unused condition. $0 (Image)