| Location | Mexico |
| Year | 1978-1980 |
| Type | Bullion/Round |
| Composition | Silver (.925) |
| Weight | 33.625 g |
| Diameter | 41.5 mm |
| Thickness | 3.0 mm |
| Shape | Round |
| Technique | Milled |
| Orientation | Coin alignment ↑↓ |
| Edge | Reeded |
| Period | United Mexican States/Mexican Republic (1823-date) |
| Reference(s) | KM#M49b |
| Obverse description | Coin mint called `de balancín` (of sway) in the center. Mint name above and year to the left. |
| Obverse lettering | CASA DE MONEDA DE MEXICO
1979 (Translation: Mexico Mint) |
| Obverse script | Latin |
| Reverse description | Scale as a centerpiece with the weight as legend around, the purity at the top-left, and the weight in grams at center bottom, and mint under |
| Reverse lettering | UNA ONZA DE PLATA PURA
LEY
.925
PESO
33.625
GRAMOS
Mo (Translation: One pure silver ounce Fineness 0.925 Weight 33.625 grams Mexico Mint) |
| Reverse script | Latin |
| Mint | Mo Mexican Mint (Casa de Moneda de México), Mexico, Mexico (1535-date) |
| Mintage | 1978 Mo - KM#M49b.1 (Wide spacing between DE MONEDA; Type 1) - 280 000 1978 Mo - KM#M49b.2 (Close spacing between DE MONEDA; Type 2) - 1979 Mo - KM#M49b.3 (Close spacing between DE MONEDA; Left scale pan points to U in UNA; Type 3) - 4 508 000 1979 Mo - KM#M49b.4 (Close spacing between DE MONEDA; Left scale pan points between U and N of UNA; Type 4) - 1980 Mo - KM#M49b.5 (Left scale pan points to the U of UNA; Type 5) - 6 104 000 |
| Catalog ID | 1439442280 |
| Comments |
