10c Gray Violet, Trans-Mississippi (290). Mint N.H. bottom imprint and plate no. 620 block of six, beautiful dark shade, remarkably fresh and intact

VERY FINE. A CHOICE AND EXTREMELY RARE MINT NEVER-HINGED BOTTOM PLATE BLOCK OF SIX OF THE 10-CENT TRANS-MISSISSIPPI ISSUE.

Mint N.H. plate blocks of six of the 10c Trans-Mississippi are exceptionally rare. This is because the full imprint and plate number is contained within the selvage adjoining two stamps of the Trans-Mississippi Issue, so generations of collectors saved this issue in plate blocks of four, rather than six. We have never offered a Mint N.H. plate block of six from the top position since keeping computerized records apart from one in a full pane. This is the only Mint N.H. bottom plate block we have offered. Lilly owned a top left corner plate block of ten, and a few full panes are also known. The great name auctions containing plate blocks, such as Colonel Green, Eno, Sinkler, Todd, the Weill Stock, Kobacker, Wampler and Fogelson, either had a plate block of four of the 10c Trans-Mississippi or none at all.

Ex Choban. With 1992 P.F. certificate

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