| Added by |
 Bart Perdieus
|
| General Description : | Metre Convention (French: Convention du Mètre, also known as the Treaty of the Metre) is an international treaty, signed in Paris on 20 May 1875 by representatives of seventeen nations which set up an institute for the purpose of coordinating international metrology and for coordinating the development of the metric system. The treaty also set up associated organisations to oversee the running of the institute. Initially it was only concerned with the units of mass and length, but in 1921, at the 6th meeting of the General Conference on Weights and Measures (CGPM), it was revised and its mandate extended to cover all physical measurements. In 1960, at the 11th meetings of the CGPM, the system of units it had established was overhauled and relaunched as the "International System of Units" (SI). |
| Face value | 50 Cent |
| Catalog code (Michel) | NL 1056 |
| Catalog code (Scott) | NL 531 |
| Catalog code | Yvert et Tellier NL 1027 Stanley Gibbons NL 1217 AFA number NL 1056 NVPH NL 1076 Unificato NL 1027 |
| Stamp colour | multicolor |
| Stamp use | Commemorative stamp |
| Print run | 15.000.000 |
| Issue date | 29/07/1975 |
| Designer | John Stegmeijer |
| Paper type | Fosforescent paper |
| Print technique | Offset lithography |
| Printed by | Joh. Enschedé en Zonen |
| Perforation | 14 x 12 3/4 |
| Height | 25.00 mm |
| Width | 36.00 mm |
| Catalog prices | No catalog prices set yet |
