11c Light Green, Perf 10 at Bottom (511a). Top plate no. 13469 block of six, bottom left stamp with transitional 11/10 gauge perforations at bottom, bottom center stamp also has transitional perfs, bottom right Perf 10, bottom center stamp lightly hinged, the other two varieties are Mint N.H., radiant color

A FINE-VERY FINE AND EXTREMELY RARE PLATE BLOCK CONTAINING TWO MINT NEVER-HINGED AND ONE LIGHTLY-HINGED EXAMPLES OF THE 1917 11-CENT PERF 10 AT BOTTOM VARIETY. ONLY FOUR SUCH PLATE BLOCKS ARE KNOWN. AN OUTSTANDING EXHIBITION PIECE.

We record the following plate blocks containing Scott 511a: 1) plate no. 13470 with two Perf 10 stamps in the bottom row, ex Zoellner; 2) plate no. 13467, off-center with perfs touching at right; 3) plate no. 13467, three Perf 10 stamps in the bottom row, including a transitional 11-to-10 gauge; 4) plate no. 13469, with two transitional and one Perf 10 stamp in the bottom row, the example offered here.

With 2007 P.F. certificate. Scott Retail for just the three varieties without premium for the plate block

Image Magnifier / Download

Power Search for Comparables