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.
10c Parcel Post (Q6). Lightly hinged, brilliant color, perfectly centered with Jumbo margins, Extremely Fine Gem, with 2010 P.S.E. certificate (OGph, Superb 98 Jumbo; SMQ $500.00), this is the highest grade awarded and it is shared by only three others, by way of comparison the highest grade for a Mint N.H. copy is 100J (one copy) followed by one copy at 98J
10c Parcel Post (Q6). Lightly hinged, huge Jumbo margins and perfect centering, bright color, Extremely Fine Gem, with 2011 P.S.E. certificate (OGph, Superb 98 Jumbo; unpriced in SMQ above the grade of 98, SMQ $375.00 as 98), this is the highest grade awarded to date in any condition category, with only one other hinged example achieving this grade (also one Mint N.H. and one used)
5c Parcel Post (Q5). Barest trace of what may be hinging (earlier certificate states Mint N.H.), rich color and proof-like impression, magnificent centering with Jumbo margins, Extremely Fine Gem, with 1998 P.F. and 2008 P.S.E. certificates (OGph, Superb 98 Jumbo; unpriced in SMQ above the grade of 98, $255.00 as 98)