The prospect of a unified Pittsburgh-Philadelphia team actually predated World War II by several years. The Pennsylvania Keystoners were a team that was proposed in 1939, conceived with the intention of the Steelers and Eagles owners buying into one of the two teams, then spinning the other off to an ownership group in Boston, Massachusetts. League officials rejected the plan, though it resulted in a convoluted ownership "two-step" that left Eagles owner Bert Bell with a share in the Steelers franchise.