1917, 50¢ red violet. O.g., never hinged, exceptional centering amid large beautifully balanced margins, bright vibrant color, immaculately fresh, Superb, a sensational stamp; with 2005 P.S.E. certificate. Scott No. 517  $135. $0 (Image)

1917, 50¢ red violet. Bottom margin plate block of 6, o.g., top center stamp hinged, others never hinged, rich color, fresh and F.-V.F. Scott No. 517  $1,600. $0 (Image)

1917, 50¢ red violet. O.g., never hinged, very well centered amid large margins, radiant color, very fresh, Extremely Fine. Scott No. 517  $135. $0 (Image)

1917, 50¢ red violet. O.g., beautifully centered, strong color, Extremely Fine and choice. Scott No. 517  $65. $0 (Image)