1960-4x, WX204, 1960 U.S. National Christmas Seals Sheet, pm W, full gum, F, MNH. Fresh, full gum, never folded, shipped flat. . Scan is of a full sheet.
Issued 1960 by the National Tuberculosis Association. Designed by Philip Richard Costigan. Four seal designs of choirboys and girls alternate in the sheet, creating se-tenant blocks of 4. Sheet of 100 (10x10), with vertical perfs. stops at margin. Margin at top inscribed, "Christmas Seals Help Protect The Family Circle". Colors: tan, black, green, and red. Seal size: 16x21mm. Perf is 121/2. Printer's Mark: "W" on seal #56, between the two carolers. Union label in margin above seal #10.