Presented here is a rare typewritten Player Contract cover letter from Pittsburgh General Manager Branch Rickey to infielder Pete Castiglione in 1951. This letter reflects that Rickey and Castiglione had yet to meet but would at spring training in San Bernadino. Rickey has signed the letter “Branch Rickey” in black fountain pen and PSA/DNA has verified it as Authentic. A scarce auto on a unique piece.