| Obverse description | Two parallel horizontal slots, between them the term CETEL/RJ, coined in low relief. |
| Obverse lettering | CETEL/RJ (Translation: Telephone Company of Rio de Janeiro) |
| Obverse script | Latin |
| Reverse description | Horizontal groove in the center. Below the groove, term, read from top to bottom FONTAMAC SP. |
| Reverse lettering | FONTAMAC SP |
| Reverse script | Latin |
| Mint | Indústria Metalúrgica Fontamac, São Paulo, Brazil |
| Mintage | ND - Port# 029, Medal alignement - ND - Port# 030, coin alignement - |
| Catalog ID | 1310982950 |
| Comments |