| Issuer | Guinea-Bissau (1976-date) |
|---|---|
| Year | 1977 |
| Type | Commemorative circulation coin |
| Value | 20 Pesos (20 GWP) |
| Currency | Peso (1975-1997) |
| Composition | Copper-nickel (75% Copper, 25% Nickel) |
| Weight | 13 g |
| Diameter | 32 mm |
| Thickness | 2.05 mm |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | May 1997 |
| Reference(s) | KM#21, Schön#21 |
| Obverse description | National arms, date below |
|---|---|
| Obverse script | Latin |
| Obverse lettering | REPÚBLICA DA GUINÉ-BISSAU UNIDADE LUTA PROGRESSO * 1977 * |
| Reverse description | Denomination under plant |
| Reverse script | Latin |
| Reverse lettering | 20 PESOS |
| Edge | Reeded |
| Mint | |
| Mintage | 1977 - - 2 500 000 |
| Numisquare ID | 1209159770 |
| Comments |