

COPY
| Number | KM# 191 |
|---|---|
| Country | San Marino |
| Period | Republic of San Marino (1972 - 2001) |
| Currency | Sammarinese lira |
| Coin type | Circulation coins |
| Denomination | 20 lire |
| Year | 1986 |
| Subject | Evolution of Technology |
| Edge type | Smooth |
| Shape | Round |
| Alignment | Coin (180°) |
| Composition | Aluminium-Bronze |
| Weight (g) | 3.6 |
| Diameter (mm) | 21.3 |
| Thickness (mm) | 1.5 |
![]() | Coat of arms Constructions Crowns Description Legend Creators: Mario Rossello |
|---|
![]() | People Science Legend Creators: Mario Rossello (Rossello) |
|---|
| Mint | Mark | Mintage | ||
|---|---|---|---|---|
| UNC | BU | Proof | ||
| Italy, Rome | R | 50.000 | - | - |
| 1986 | $ ***** |
