73-1x, WX250a,, ALA 1973 U.S. Christmas Seals Sheet, pm E, full gum, F, MNH. Fresh, full gum, shipped flat. Scan is of front of sheet.
Issued 1973 by the National Tuberculosis and Respiratory Disease Association (NTRDA). Designed by Cheryl Johnson. Images of Tweve Days of Christmas inscribed alternately, "Christmas 1973" and "Greetings 1973"
Sheet of 100 (10x10) seals, SE3S, perforated margin at top, multicolored. Seal size: 16-1/2x21mm, perf 12-1/2. Printer's Mark E on seal #56 indicates Eureka Speciality Printing Co. Vertical perfs stop at margin.
This is mint, never hinged, full gum dealer stock.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.