1920-1, WX26a, U.S. Christmas Seals Block, Type 1, perf. 12, full gum, VF, MNH. Issued 1920 by the National Tuberculosis Association. Designed by Ernest Hamlin Baker. Image of Santa and child.
Block of twelve (12) Christmas Seals with Eureka UL plus circles. Fresh and well centered.
This is Type 1 of the seal, red, green, and, blue, 18x22mm, with perf 12. Scans of front and back provided upon request.
Christmas Seals are also known as TB Seals, and are usually classified as Charity Seals, or Cinderella Stamps.