1976 13¢ Chemistry Mint Sheet

United States #1685 13¢ Chemistry Mint Single

United States #1632 13¢ Interphil Mint Sheet of 50 *Plate number and position may vary from image shown.

United States #1683 13¢ Telephone Mint Sheet of 50 *Plate number and position may vary from image shown.

United States #1690 13¢ Benjamin Franklin Mint Sheet of 50 *Plate number and position may vary from image shown.

United States #1699 13¢ Clara Maass Mint Sheet of 40 *Plate number and position may vary from image shown.

United States #1701 13¢ Christmas - Nativity Mint Sheet of 50 *Plate number and position may vary from image shown.

United States #1702 13¢ "Winter Pastime" Andreati Mint Sheet of 50 *Plate number and position may vary from image shown.

United States #1633-82 13¢ Bicentennial State Flags Mint Sheet of 50 *Plate number and position may vary.

United States #1648 13¢ Tennessee Mint Single