Greenfield Coin Exchange is a locally-owned business that has been buying gold, silver, jewelry and coins for cash from the same location since 1978. The company is an exchange service, and offers coin collection appraisal, numismatic coins bought and sold at fair prices, and the purchase and sale of rare coins. Greenfield Coin Exchange is located on West Loomis Road at 43rd street, just off of 894 South.