If your balance is accurate, it suggests silver. But it could easily be off. Look at the edge: if you see copper sandwiched between, it's copper-nickel; if not, silver. Since it's Philadelphia (no mint mark), it's not a proof. But without an "S" mint mark, I have to say it's not silver. The color is more copper-like as well. So your coin isn't worth a whole lot more than a quarter, if uncirculated it has a retail value of about a dollar. Hope that helps.
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