Block of 4 – 1998 USA 32¢ Breast Cancer Research MNH Scott B1 Semipostal

Block of four 32¢ Breast Cancer Research semipostal stamps issued July 29, 1998, the first fundraising stamp in U.S. history. Design by Ethel Kessler and illustration by Whitney Sherman show a woman raising her arm in a self‑examination pose. Originally sold at 40¢, with 8¢ donated to research: 70% to NIH and 30% to the Department of Defense Medical Research Program. All stamps remain attached in a clean block of four. Mint, never hinged with original gum. Identified as Scott No. B1.

FEATURES
- Issue Year: 1998
- Denomination: 32¢ (40¢ semipostal price)
- Type: Semipostal (first U.S. fundraising stamp)
- Design: Self‑examination pose
- Designer: Ethel Kessler
- Illustrator: Whitney Sherman
- Format: Block of 4
- Scott No.: B1
- Condition: MNH
- Gum: Original gum
- Theme: Health awareness, breast cancer research