1923, $1 violet black. Nicely centered, canceled by oval handstamp with "Washington, D.C., Feb 12, 1923" First Day of Issue duplex cds alongside on locally addressed cover, Very Fine, a rare high value first day cover. Scott No. 571  $7,000. $0 (Image)

1923, $1 violet black. Block of 4 with vertical guideline, o.g., never hinged, fresh and Very Fine; with 2006 A.P.S. certificate. Scott No. 571  $340. $0 (Image)

1923, $1 violet black. Bottom margin block of 4 with plate number, o.g., never hinged, F.-V.F. Scott No. 571  $340 for n.h. singles. $0 (Image)