Over time, coins can become rare collectibles that are sold for thousands, if not millions, of dollars in the present day.

Collectors would usually ascertain a coin's weight and diameter so, any deviations exceeding 0.1g indicate potential forgery; hence, a basic magnet test is useful, as authentic silver is non-magnetic.

The silver coins were minted over a period of more than 200 years, suggesting that Roman currency at this time was relatively stable.

"The hoard is the find of a lifetime," Stephenson said in a statement from Scotland's Crown Office and Procurator Fiscal Service. Some of the coins were English silver groats, minted by both Henry ...

but they are compounded by the coin having a special strike from a pattern the United States Mint designed in 1792 and then began testing in 1793. There are only an estimated 25 Silver Center Cent ...