A Gem! 11-1, WX7, 1911 U.S. Red Cross Christmas Seals Block, Type 1, full gum, VF, MNH. Issued 1911 by the American National Red Cross. Designed by Anton Rudert. Image of a house within heavy red circle.
The 1911 Type 1 Christmas Seal has a circular frame 22mm in diameter, the house is solid green with red windows, and a heavy red circle.
In this instance, the red in the windows shifted below windows, along with the red dots on both sides of "Happy New Year".
Typographed by Eureka Speciality Printing Co., perf. 12.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.