"I was inspecting a large bag of quarter rolls, opening them one by one to look for older pieces with high silver content," the coin hobbyist says.
"In one of the rolls, I was immediately startled by an odd coin featuring the bust of an extraterrestrial. It stood out in stark contrast to the bust of Washington present on the other coins."
The alien face included the word "Liberty" printed at the top and the year 1937 printed at the bottom.
Far from being a unit of currency from another world, however, this particular coin is believed to be what is known as a "hobo coin".
There were thought to be over 200,000 classic hobo coins produced between 1913 and 1980 - each with a unique piece of artwork created by the homeless.
They were often made by altering existing coins using knives or other tools.
The identity of the artist who made this particular example, however, remains a mystery.
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