Lot 168
 
1915, 2¢ pale carmine red, S.L. watermark, perf 11 (461), Very Fine. Right margin block of four tied on piece with July 19, 1915 (early use) "Washington D.C." duplex cancels, well centered and fresh. Very Fine.
Scott $3,000
AN EXCEEDINGLY RARE USED BLOCK WITH ONLY A FEW GENUINE BLOCKS KNOWN.
Expertization: with 1989 P.F. certificate.
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| Realized $1,150 |
