| Obverse description | Two horizontal and parallel grooves, among them the acronym: CTB. |
| Obverse lettering | CTB (Translation: Brazilian Telephone Company) |
| Obverse script | Latin |
| Reverse description | A horizontal groove centered on the part. |
| Reverse lettering | |
| Reverse script | |
| Mint | F Indústria Metalúrgica Fontamac,São Paulo, Brazil |
| Mintage | ND
(1970-1997) - Port#101/Groe#A4 No letters on reverse (small letters) - ND (1970-1997) F - Port#102/Groe#A15.1 Reverse lettering `F`, `1 1`; medal alignment - ND (1970-1997) F - Port#103/Groe#A15.2 Reverse lettering `F`, `1 2`; medal alignment - ND (1970-1997) F - Port#104/Groe#A15.3 Reverse lettering `F`, `1 3`; medal alignment - ND (1970-1997) F - Port#105/Groe#A15.4 Reverse lettering `F`, `1 4`; medal alignment - ND (1970-1997) F - Port#106/Groe#A15.5 Reverse lettering `F`, `1 5`; medal alignment - ND (1970-1997) F - Port#107/Groe#A15.6 Reverse lettering `F`, `1 6`; medal alignment - ND (1970-1997) F - Port#108/Groe#A15.7 Reverse lettering `F`, `1 7`; medal alignment - ND (1970-1997) F - Port#109/Groe#A15.8 Reverse lettering `F`, `1 8`; medal alignment - ND (1970-1997) F - Port#110/Groe#A15.9 Reverse lettering `F`, `1 9`; medal alignment - ND (1970-1997) F - Port#111/Groe#A15.1 Reverse lettering `F`, `1 1`; coin alignment - ND (1970-1997) F - Port#112 Reverse lettering `F`, `1 2`; coin alignment - ND (1970-1997) F - Port#113/Groe#A15.3 Reverse lettering `F`, `1 3`; coin alignment - ND (1970-1997) F - Port#114 Reverse lettering `F`, `1 4`; coin alignment - ND (1970-1997) F - Port#115/Groe#A15.5 Reverse lettering `F`, `1 5`; coin alignment - ND (1970-1997) F - Port#116/Groe#A15.6 Reverse lettering `F`, `1 6`; coin alignment - ND (1970-1997) F - Port#117/Groe#A15.7 Reverse lettering `F`, `1 7`; coin alignment - ND (1970-1997) F - Port#118/Groe#A15.8 Reverse lettering `F`, `1 8`; coin alignment - ND (1970-1997) F - Port#119/Groe#A16.1 Reverse lettering `F`, `2 1`; medal alignment - ND (1970-1997) F - Port#120 Reverse lettering `F`, `2 2`; medal alignment - ND (1970-1997) F - Port#121 Reverse lettering `F`, `2 3`; medal alignment - ND (1970-1997) F - Port#122 Reverse lettering `F`, `2 4`; medal alignment - ND (1970-1997) F - Port#123 Reverse lettering `F`, `2 5`; medal alignment - ND (1970-1997) F - Port#124/Groe#A16.1 Reverse lettering `F`, `2 1`; coin alignment - ND (1970-1997) F - Port#125/Groe#A16.2 Reverse lettering `F`, `2 2`; coin alignment - ND (1970-1997) F - Port#126/Groe#A16.3 Reverse lettering `F`, `2 3`; coin alignment - ND (1970-1997) F - Port#127/Groe#A16.4 Reverse lettering `F`, `2 4`; coin alignment - ND (1970-1997) F - Port#128/Groe#A16.5 Reverse lettering `F`, `2 5`; coin alignment - |
| Catalog ID | 6364210280 |
| Comments |