Grenada
| Country: | Grenada |
| Type: | Postage stamps |
| Series: | W.H.O. (World Health Organization), 25th Anniversary |
| Nominal: | 50 ¢ |
| Year: | 1973 |
| Size: | 30 x 43 mm |
| Perforation: | comb 14¾ |
W.H.O. (World Health Organization), 25th Anniversary
 Ignaz Philipp Semmelweiss 0.04$ |  Louis Pasteur 0.15$ |  Edward Jenner 0.48$ |  Sigmund Freud 0.43$ |
 Emil von Behring |  Carl Jung |  Charles Calmette |  William Harvey |