Friedberg 321. 1891 $20 Silver Certificate. PMG Gem Uncirculated 66 EPQ. A nearly superb Parker-Burke signed $20 Silver Certificate that is tied for the finest graded example of the catalog number at PMG. This series of wonderfully designed $20 Silver Certificates features the portrait of Daniel Manning as on the previous note. This 1891-dated example displays large even margins and sharply printed design elements. The overprints are deep blue in color and exceptionally well presented. The green printed open back displays vivid detail and ideal color. This example was formerly from the collection of Dr. Edward and Joanne Dauer. The visual appeal of this note is superior to the PCGS Currency graded Gem New 66 PPQ example that we sold for $28,800 as part of the Joel R. Anderson Collection in our March 2018 Baltimore auction. PMG has added comments for exceptional embossing and color to the end of their EPQ qualifier.<br style="box-sizing:border-box;color:#333333;font-family:Avenir, Roboto, Helvetica Neue, Helvetica, Arial, sans-serif;font-size:14px;background-color:#ffffff;" />The face of the Series of 1891 notes continues the same motifs, now with some changes in typography and minor differences. The back is completely new, in the "open" style then thought by the Bureau of Engraving and Printing to be an aid against counterfeiting. Beginning with Fr-321, the variety featured here, a large blue "XX" was added to the left field, and the seal color was changed to blue, after which the prefix letter H was used on the serial numbers.<br style="box-sizing:border-box;color:#333333;font-family:Avenir, Roboto, Helvetica Neue, Helvetica, Arial, sans-serif;font-size:14px;background-color:#ffffff;" /><br style="box-sizing:border-box;color:#333333;font-family:Avenir, Roboto, Helvetica Neue, Helvetica, Arial, sans-serif;font-size:14px;background-color:#ffffff;" />F-321 notes are signed by Parker and Burke who were in office together in 1913 and 1914. We estimate a printing quantity of 1,520,000 and a survival of fewer than 400 notes, most of which are well circulated. <em>From Lyn Knights sale of December 1989, lot 1218; Dr. Edward & Joanne Dauer.</em>