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<p>[QUOTE=&quot;sonlarson, post: 8121926, member: 15488&quot;]The first modern Silver Bullion was the Mexican Onza.&nbsp; It was first issued in 1949 and strucked intermittently using the same 1949 date until 1978.</p><p>The Una Onza, as it was know, was classified as a Medallic Silver Bullion Coinage. The coin was issued in an attempt by Mexico to reestablish itself back into the world trade-dollar market. </p><p><br /></p><p>The coins were minted in 0.9250 Silver, 33.625 g, 0.9999 oz. ASW, and a diameter of 41mm. All had a reeded edge.</p><p><br /></p><p>[ATTACH=full]1414158[/ATTACH] </p><p><br /></p><p>The 1949 obverse featured a screw press at the center with the legend, CASA DE MONEDA DE MEXICO and 1949. The mintmark o/M was above the press.</p><p>The reverse has a balance scale at the center, with PESO/33.625/GRAMOS, above the left arm of the scale and LEY/0.925 below the pillar. The legend read UNA ONZA TROY = 480 GRAMOS DE PLATA PURA&nbsp; *.</p><p>1949 Mintage 1,000,000</p><p><br /></p><p>[ATTACH=full]1414159[/ATTACH] </p><p><br /></p><p>The obverse of the later years had the same screw press and legend as the 1949, except the date was placed to the left of the press and no mintmark.</p><p><br /></p><p>The later reverse showed the same balance scale, but the legend now read UNA ONZA TROY DE PLATA PURA. </p><p>LEY/0.925 was now above the scale arm and PESO/33.625/GRAMOS was below the pillar. The mintmark o/M was at the bottom.</p><p><br /></p><p>The 1978 had 2 varieties. The Type I has a wider, (3mm), space between the words in DE MONEDA, and the Type II, with a smaller (2.75mm), spacing. Mintage was a low 280,000 across the 2 types, making it the key date of the series.</p><p><br /></p><p>[ATTACH=full]1414160[/ATTACH] </p><p><br /></p><p>The 1979 also had 2 varieties. The Type III, where the left scale pan </p><p>points to the U in UNA, and the Type IV, where the pan points </p><p>between the U and N. Mintage was 4,508,000.</p><p><br /></p><p>[ATTACH=full]1414161[/ATTACH] </p><p><br /></p><p>The 1980, Type V, had the highest mintage of the series at 6,101,000.</p><p>Varieties were 1980/70 and 1980/02 overdates.</p><p><br /></p><p><br /></p><p>This short 4 coin series is an easy one to complete. Collecting all 5 varieties and overdates will add a little more challenge.[/QUOTE]</p><p><br /></p>

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