Treasury Savings, 1920, $1 Red on Green, top plate no. F73198 single, faintly hinged, wide margins, vibrant color on deep green paper; couple selvage flaws, F.-V.F. and very scarce, ex-Beutel; with 2010 P.F. certificate. Scott No. TS1  $3,750. AN EXCEPTIONALLY RARE TOP PLATE NUMBER SINGLE OF THE 1920 $1 TREASURY SAVINGS STAMP. There are no known plate number blocks of this stamp. $0 (Image)