Scott Catalog # : 3506a-j / Fleetwood First Day Cover.
Set includes: 3506a Pronghorn and Canada Goose / 3506b Burrowing Owls / 3506c American Buffalo - Bison / 3506d Black-tailed Prairie Dog / 3506e Painted Lady Butterfly and Prairie Wild Rose / 3506f Western Meadowlark and Camel Cricket / 3506g Badger / 3506h Eastern Short-horned Lizard and Plains Pocket Gopher / 3506i Dung Beetle and Plains Spadefoot and 3506j Two Stripped Grasshopper and Ord's Kangaroo Rat.
