19-1.4x, WX24b, 1919 U.S. Red Cross Christmas Seal, Type 1, full glazed gum, F, NH. Never folded, shipped flat.
Issued 1919 by the American National Red Cross. Designed by Ernest Hamlin Baker. Image of Santa behind a sack with Red Cross symbol on front.
There is white plume to left of Santa's cap, no white dot on front, which indicates that this is the Type 1, typographed by Eureka Specialty Printing. Perforated margin at left, union label at left of seal #41. Seal size18x22mm, perf 12x12:00.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.