NWF 8-255B.26x, 1981 National Wildlife Federation Spring Charity Stamps, full gum, F, ph. Issued 1981 by the National Wildlife Federation (NWF). Sheet of 36 (6x6) stamps, Perf. 121/2, PM@T, images of wildlife, multicolored. Perf. break between seals #25 and #31. Sheet has not been folded, shipped flat.
Funds derived from the donations received for these stamps were used to support the activities of the National Wildlife Federation (NWF).
NWF Spring Charity Stamps are usually classified as Charity Stamps, or Cinderella Stamps.