United Kingdom
| Country: | United Kingdom |
| Type: | Postage stamps |
| Series: | Discoveries |
| Nominal: | 1 s |
| Year: | 1967 |
| Material: | coated with two phosphor stripes |
| Perforation: | 15 x 14 |
Discoveries
 Radar Screen 0.09$ |  Penicillin Mould 0.1$ |  Vickers VC-10 twin jet engines 0.1$ |  Television Equipment 0.23$ |
 Penicillium notatum |