1977 13¢ Butterflies Mint Block

United States #1712-15 13¢ Butterflies (4 Varieties, Attached) Mint Sheet of 50 Varieties include: #1712 - Swallowtail #1713 - Checkerspot #1714 - Dogface #1715 - Orange-Tip *Plate number and...

United States #1712-15 13¢ Butterflies - 4 Varieties, Attached Plate Block Varieties: #1712 - Swallowtail #1713 - Checkerspot #1714 - Dogface #1715 - Orange-Tip *Plate number and position may vary...

United States #1723-24 13¢ Energy Mint Pair

United States #1704 13¢ Princeton Mint Single

United States #1709 13¢ Acoma Mint Single