Would Sure Appreciate A Little Help

I'm a lurker from the paper side.Came across this copper coin.I am clueless as to any values or rarity when it comes to this type (and many others I'm afraid) and would greatly appreciate any info.Thanks in advance! 


Collector of numeral seals.That's the 1928 and 1928A series of FRNs with a number rather than a letter in the district seal. Owner/operator of Bottom Line Currency
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