United States
0.17 - 0.2$
price on 16.11.2022
PAP test discovery
| Country: | United States |
| Type: | Postage stamps |
| Series: | Early Cancer Detection Issue |
| Nominal: | 13 ¢ |
| Year: | 1978 |
| Size: | 25 x 40 mm |
| Perforation: | line 10½ x 11¼ |
| Mintage: | 152,000,000 |