The Postal Service plans to issue its first semipostal stamp in August. A semipostal stamp has an added value above the first-class rate, with the extra cost earmarked for a worthwhile cause - in this case, breast cancer research.

The first-class rate is 32 cents. But the new self-adhesive stamp will sell for 40 cents. The additional eight cents will go to government agencies that are conducting breast cancer research. Ethel Kessler of Bethesda, Md., a breast cancer survivor, designed the stamp.The new 40-cent stamp has no denomination indicated on the design. "USA" and "First Class" appear at the bottom of the stamp. The background features blue, yellow, orange and green washes of watercolor. At the top are the words "Breast Cancer."

A black ink drawing of a female figure is the main design. The phrases "fund the fight" and "find a cure" are seen flowing left to right in a circular clockwise pattern.

Many other countries have issued semipostals with the added surcharge allocated to special projects. But this stamp is the first issued by the U.S. Postal Service.