I'm still just a newbie when it comes to world coins, but I seen this coin and I just had to have it. When I got home, I realized that I overpaid BIG TIME. But anyway, it is a 1964 1 Peso, and the Lamination is on the reverse. And just wanted to see what everyone thought about the grade, and if this is common on this issue, and if this has any value or I just took a mid-range loss. In some places I'm actually surprised it's not chipped off. But anyway, here are the pics...
Looks like improper alloy mixing/annealing. I can't say it is common for these coins, but it's certainly not a rarity. Coins with low silver content like this are prone to such issues when the different metals are not evenly mixed, causing varying concentrations in various parts of the planchet. The differently colored bands you see on both sides of the coin are areas where one type of metal is more highly concentrated. If this particular metal is softer or more brittle than the rest of the coin, you are likely to see laminations along those streaks. I don't think it will increase the value. In fact, most collectors would prefer a perfect coin.
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