Three things to keep in mind when looking at the above results (unsolds are not included):
It is important to look at the individual data points listed below. Price swings up may be due to varieties such as broken hat or other positives such as cancels. Price swings down may be due to factors such as faults on items that would have graded higher if they were sound, and may not be considered as desirable as a sound copy in this grade.
When looking at multiple grades on the graph, grades with the same population numbers may show overlapping.
At the time of an auction, the SMQ value has already been published and is available to bidders. Increases or decreases in SMQ value prior to the auction may affect the price realized.
This information is provided for hobbyists and is not intended to represent philatelic material as an investment or financial instrument. Past performance is neither an indication nor guarantee of future performance. Every effort has been made to ensure the accuracy of the information, but Siegel Auction Galleries (including its representatives and affiliates) is not liable for errors or omissions of any kind. "SMQ" refers to Stamp Market Quarterly, a copyrighted publication, and the information is used with the copyright holder's permission.
50c Violet (422). Pretty shade, perfectly centered with Jumbo margins, neat cancel, Extremely Fine Gem, with 2013 P.S.E. certificate (Superb 98 Jumbo; unpriced in SMQ above the grade of 98, SMQ $600.00 as 98), this is the highest grade awarded and no others share it
50c Violet (422). Bright shade, perfectly centered with wide margins, neat circular datestamp, Extremely Fine Gem, with 2014 P.S.E. certificate (Superb 98; SMQ $700.00), only one stamp grades higher (98J, ex Curtis) and this is the sole example to achieve this grade
50c Violet (422). Radiant color on bright paper, choice centering, long and full perforations all around, neat strike of oval registry cancel, Extremely Fine Gem, with 2011 P.F. and 2008 P.S.E. certificates (XF-Superb 95; SMQ $275.00), this is the highest grade awarded and only three others share this grade
50c Violet (422). Beautiful centering with wide and balanced margins, pretty shade on crisp paper, bold strike of oval registry cancel, Extremely Fine Gem, Scott 422 was issued approximately two years before Scott 421, with 2008 P.S.E. certificate (XF-Superb 95; SMQ $275.00), this is the highest grade awarded to date and only three others have achieved this grade
50c Violet (422). Rich color on bright paper, long and full perforations all around, neat strike of registry oval cancel, well-balanced margins, Extremely Fine Gem, with 2008 P.S.E. certificate (XF-Superb 95; SMQ $275.00), this is the highest grade awarded to date and only three others share this grade