| Obverse description | Two parallel horizontal grooves, having between them the TELEMAT plank, coined in low relief. |
| Obverse lettering | TELEMAT (Translation: Telecommunications of Mato Grosso) |
| Obverse script | Latin |
| Reverse description | Horizontal groove in the center, bearing below the name of the manufacturer of these pieces, ie ARTOL - 79 in frame. |
| Reverse lettering | ARTOL - 79 |
| Reverse script | Latin |
| Mint | ARTOL Artefatos Olinda, Brazil |
| Mintage | ND
(1970-1997) - Port#636 without mintmark - ND (1970-1997) ARTOL - Port#637 Reverse lettering `ARTOL - 79` in frame; Medal alignment - ND (1970-1997) ARTOL - Port#638 Reverse lettering `ARTOL - 79` in frame; Coin alignment - |
| Catalog ID | 7046995870 |
| Comments |