An 1858 penny would actually be a flying eagle:A penny from 1858 would be a Indian, and quite old. I'd call it a keeper...
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1859 was the first year of the Indian head penny series. There was some comments about how the image had a remarkable resemblance to the mint's chief engraver, James Longacre's, daughter.
If one is really picky, the United States has never had a coin legally designated as a penny. It has always been the cent. It is just called a penny due to our British heritage.
My guess about getting three same date 'obsolete' coins in change is someone likely traded in a roll of pennies from a coin collection. This happens often when someone squirreled away a few rolls or someone dies and family members spend the collection.
jtk