| Value | 10 Zlotch |
| Material | Copper nickel |
| Weight | 9.5 gr |
| Diameter | 28 mm |
| Thickness | 2.1 mm |
| Shape | Round |
| Subject | State emblem - Portrait of Tadeusz Kościuszko |
Y51a · Poland · 1967 - 1969

| Value | 10 Zlotch |
| Material | Copper nickel |
| Weight | 9.5 gr |
| Diameter | 28 mm |
| Thickness | 2.1 mm |
| Shape | Round |
| Subject | State emblem - Portrait of Tadeusz Kościuszko |
Coin