Extremely Rare Ping Redwood City B5C Pat. Pend croquet bronzed brass mallet head putter - the sole is stamped to both ends with "Pat Pend 19" and "Ping B5C" and to the cavity centre "Ping by Karsten - PO Box 503 - Redwood City - Calif", fitted with the original shaft and with a "Golf Pride" flat faced grip. Note this Redwood City B5C is the rarest and most unusual Redwood City Model ever made. It was Karsten's first attempt at a centre-shafted ""croquet"" style mallet head - the design was banned and it is thought that The Redwood City B5C was probably one of only 3 or 4 ever made."