Subscribe | UPI Odd Newsletter Subscribe CANBERRA, Australia, June 11 (UPI) -- An Australian coin dealer said the economy has not damaged the investment coin market, allowing her to sell a 1930 penny for more than $1.5 million. Belinda Downie of Coinworks said the coin, one of six proof pennies minted in 1930, was sold to an unidentified buyer for an amount she would only identify as more than $1.5 million, the Sydney Morning Herald reported Friday. Advertisement "These proof pennies were never intended for circulation but instead created as museum pieces," Downie said. "It's a totally separate process. These are produced in an artistic environment from hand-selected blanks." Downie said the market for rare coins has remained strong due to the high demand and low supply.