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<p>[QUOTE=&quot;GDJMSP, post: 48937, member: 112&quot;]The green stuff is verdigris - it needs to be removed. You will probably have to buy a commercial coin cleaner and dip the coin. If you do not remove it - it will damage the coin further.</p><p><br /></p><p>You have your obverse &amp; reverse mixed up - the side with the pillars is the reverse. The coin appears to have already been harshly cleaned and has some damage on the reverse. It also appears to show signs of corrosion. It would grade VF otherwise.</p><p><br /></p><p><br /></p><p><br /></p><p>I&#039;ll have to look these up as I only collect milled Spanish colonial and some of the very early pieces.</p><p><br /></p><p><br /></p><p><br /></p><p>This is considered to be damage and would result in the coin getting a net grade. Typically it reduces the value anywhere from 40 - 80% depending on rarity.</p><p><br /></p><p><br /></p><p><br /></p><p>The 1820 2 reales is from Mexico, struck at the Zacatecas (sp? ) mint. They are known to have been wealkly struck as you can see in the center of the obverse. I would grade this one as VF.</p><p><br /></p><p>The coin you have listed as Spanish cob, I don&#039;t think is a cob. I think it is a reale coin struck in Spain itself. I&#039;d have to look it up to be sure. I can&#039;t make out the denomination in these pics. The coin is quite worn, has been harshly cleaned at least twice and has verdigris on the obverse. I would say this one would grade About Good.</p><p><br /></p><p>The 1742 8 reales would grade VF if not for the solder - F with it. It also appears to have been harshly cleaned and has signs of corrosion.</p><p><br /></p><p>The 1749 2 reales has been harshly cleaned and has corrosion damage. It would be a nice VF otherwise.</p><p><br /></p><p>Can&#039;t sure based on the pics but I think the 1751 2 reales is a cast counterfit. If genuine VF.</p><p><br /></p><p>I think the 1765 2 reales is a cast counterfeit.[/QUOTE]</p><p><br /></p>

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