A prototype of US' first dollar coin has fetched $840,000 in an auction. Known as a 'pattern', the 1794 copper coin exhibits the Liberty's portrait while displaying an eagle on a rock on the flip side. Interestingly, the coin is considered to be a "one-of-a kind" prototype as it misses the engraved stars. Earlier owned by businessman Bob Simpson, the coin's auction price was expected in the range of $350,000-$500,000.
Courtesy: Hindustan Times