Lot
2237 
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1915, 50¢ violet, right margin plate no. "7049" block of 6, o.g., lightly hinged, three stamps never hinged, beautiful allover centering with wide margins, strong vivid color, Extremely Fine and choice; with 2006 & 2015 P.F. certificates. Scott No. 440 $15,000.
AN EXCEPTIONAL AND EXTREMELY RARE PLATE BLOCK OF THE 1915 50¢ SINGLE LINE WATERMARK PERF 10 ISSUE.
Realized: $8,000