Butterflies on Stamps – USA 1977.
The United States issued four stamps on Butterflies on 06 Jun 1977. The 13c stamps were issued in se-tenant blocks of four.
13c- California Dogface 13c- Orange Tip 13c- Oregon Swallowtail 13c- Baltimore Checkerspot.
Butterflies/Insects, Fauna, Flora, Se-tenant stamps
Butterflies on Stamps – USA 1977.
Stamp Digest 