Lot 401
 
1917, 11¢ light green, perf 10 at top (511a), top plate no. 13470 block of six, with the lower left stamp being the perf 10 at bottom variety, original gum lightly hinged, five stamps, including the variety, are never hinged, bright color, crisp. F.-V.F.
Scott $7,500+
PLATE BLOCKS WITH THE PERF 10 VARIETY ARE EXCEEDINGLY RARE.
Expertization: with 1970 P.F. certificate.
Provenance: Wampler
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| Realized $2,000 |
