United States #1921-24 18¢ Wildlife Habitats Mint Sheet of 50
Includes:
- #1921 - Blue Heron "Save Wetland Habitats" (10x)
- #1922 - Badger "Save Grassland Habitats" (10x)
- #1923 - Grizzly Bear "Save Mountain Habitats" (15x)
- #1924 - Ruffled Grouse "Save Woodland Habitats" (15x)
Mint condition, never hinged.
