Greenville, PA (USA) - Hodge Foundry Co., one of Mercer County’s oldest manufacturers, said Monday it was sold to an investment company. Silverhawk Capital Partners LLC, a Greenwich, Conn., investment firm, bought Hodge through its Elyria Foundry Co. LLC, a Cleveland area foundry. No sales price was disclosed. Hodge Foundry was owned by Commonwealth Capital Group, members of the Hodge family and six local…