Slider

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Slider

In numismatics, a slang term for a coin that has been cleaned in order to make it appear to be in mint condition. This may actually reduce the value of the coin. That is, a slightly used coin in good condition may be worth more than a slider.
References in periodicals archive ?
Perhaps capture rates would have increased if decoys were painted to resemble pond sliders and northern map turtles.
1999) found that sex ratios of pond sliders varied seasonally and between hoop nets and basking traps.