Poland
Double letters ELEK, different possibilities known: ELE, LE, LEK.
| Country: | Poland |
| Type: | Postage stamps |
| Series: | The Building of a New Electric Power Plant in Jaworzno |
| Nominal: | 1 zł |
| Year: | 1952 |
| Perforation: | frame 12¾ x 12½ |
The Building of a New Electric Power Plant in Jaworzno
 Power plant, Jaworzno 0.03$ |  Power plant, Jaworzno |  Power plant, Jaworzno, Perf. 12¾x12½ 0.09$ |  Power plant, Jaworzno |