Block of 4 – 1998 USA 40¢ Breast Cancer Research MNH Scott B1 Semipostal

Block of four 40¢ Breast Cancer Research semipostal stamps issued July 29, 1998, America’s first semipostal stamp. Sold at 40¢ to cover the 32¢ first‑class rate plus an 8¢ surcharge supporting breast cancer research. Designed by Ethel Kessler with illustration by Whitney Sherman, the artwork symbolizes strength and courage in the fight against the disease. This is a plate block showing plate number V11111 from the top‑left pane position. Identified as Scott B1. All stamps are mint, never hinged, with original gum and clean perforations.

FEATURES
- Issue Year: 1998
- Denomination: 40¢ (32¢ postage + 8¢ surcharge)
- Subject: Breast Cancer Research
- Designers: Ethel Kessler & Whitney Sherman
- Format: Block of 4 (plate block)
- Plate Number: V11111
- Scott Number: B1
- Condition: MNH (Mint Never Hinged)
- Gum: Original gum
- Theme: Health, awareness, medical research
- Use: Collecting, display, albums