The postage stamp shows an amperemeter, a centimeter tape, a stopwatch and a platinum-iridium cylinder under a glass cap.
| Printing method |
Paper |
Colors |
Perforation |
Format of the stamp |
Edition |
| Offset + security system |
Chalk surfaced |
Multicolor |
Comb 11¼ |
37 × 37 mm |
126000 |