| Added by |
 Bart Perdieus
|
| General Description : | Zénobe Théophile Gramme (4 April 1826, Amay - 20 January 1901) was a Belgian electrical engineer. He invented the Gramme machine, a type of direct current dynamo capable of generating smoother (less AC) and much higher voltages than the dynamos known to that point. In 1873 he and Hippolyte Fontaine accidentally discovered that the device was reversible and would spin when connected to any DC power supply. The Gramme machine was the first usefully powerful electrical motor that was successful industrially. Before Gramme's inventions, electric motors attained only low power and were mainly used as toys or laboratory curiosities. Gramme died at Bois-Colombes, France and was buried in Père Lachaise Cemetery. |
| Face value | 35 Centimes |
| Catalog code (Michel) | BE 277 |
| Catalog code | Stamp Number BE 217 Yvert et Tellier BE 299 Stanley Gibbons BE 559 AFA number BE 282 Belgium BE 299 Unificato BE 299 |
| Stamp colour | green |
| Stamp use | Commemorative stamp |
| Print run | 15.000.000 |
| Issue date | 26/04/1930 |
| Print technique | photogravure |
| Printed by | Joh. Enschedé en Zonen, Haarlem |
| Perforation | comb 12 1/2 x 12 |
| Height | 32.00 mm |
| Width | 24.00 mm |
| Catalog prices | No catalog prices set yet |
