Friedberg 129. 1878 $20 Legal Tender Note. PMG Gem Uncirculated 66 EPQ. About 200 examples of this Allison-Gilfillan signed 1878 $20 Legal Tender Note are known to collectors. Red ornamental XX protectors are found left and right of the large 20 counter at center. A red spiked Treasury Seal is at lower right. The engraved signatures of Allison and Gilfillan are near the bottom center. The back design is elaborate with the Legal Tender clause and anti-counterfeiting language in the field at left. The imprint of the Columbian Bank Note Company is seen at bottom center with "PRINTED AT THE BUREAU OF ENGRAVING AND PRINTING" below.Broad margins amply frame the boldly printed plate impression on this example. Bright red overprint inks are featured in the XX protectors and spiked Treasury Seal at lower right. The back is well centered, sharply detailed and shows plentiful paper fibers and light blue security tint. PMG has graded just a single example of the type finer. <em>From Heritages sale of May 2001, lot 7100. </em>