150th Anniversary of the Birth of A.S. Popov (1859-1906). physicist. electrical engineer and inventor of radio
83%
| Country: | Russia |
|---|---|
| Issue: | Science and Technology (Famous scientists) Science and Technology (Physics and chemistry) Telecommunications |
| Date: | 2009-03-16 |
| Size: | 32.5 x 32.5 |
| Perforation: | 12 by 12 |
| Format: | Stamp |
| Face Value: | 20.00 Russian ruble |
