1937-4xA, WX89, 1937 U.S. National Christmas Seals Sheet, pm U, full gum, F, MNH. Issued 1937 by the National Tuberculosis Association (NTA). Designed by A. Robert Nelson. Image of a town crier. Fresh, firm paper, never folded, shipped flat.
Sheet of 100 (10x10) seals, 96 regular seals with four slogan seals. Colors: yellow, black, red, blue. Seal size: 24x18mm. First printing, flaws on seals #35 and #39. Printer's Mark on seal #55.
Slogan Seals: there are four slogan seals in the following positions which show the double-barred cross and wording is as follows: Seal #23: "Health for All"; Seal #28: "Protect Your Home"; Seal #73: "Preventable"; Seal #78: "Curable".
1937 Christmas Seals were printed by four printers, Eureka "E" (WX88), Strobridge "S" (WX89), Edwards and Deutch "D" (WX89), and U.S. Printing "U" (WX89).A letter "E" "D" or "S" appears on seal #56, or "U" appears on seal #55.
Christmas Seals are also known as TB Charity Seals, and are sometimes classified as Charity Seals, or Cinderella Stamps.