That's what we call a Dryer Coin....scraped up surface with no reeding. Safe to spend to CCF ...keep looking, good luck on future finds, have fun and ask again when needed.
Jimmy, normally I don't correct old-timers, but ...
US dimes are not plated. They are clad, which is an explosive bonded sandwich of three layers - the outer layers are copper-nickel (75-25), and the core is pure copper.
When struck, the collar (3rd side of the die) imprints the reeded edge pattern.
A coin that is repeatedly struck on the edge (dryers, slot machines, etc.) will have those reeds flattened, giving the coin OP has pictured.
-----Burton
50+ year / Life / Emeritus ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)
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