Rare and early Ping Redwood City Mod. 1A pat pending centre shaft rectangular shaped brass putter-front and rear soles are stamped "Ping by Karsten" to the one and "Redwood City Calif-Pat Pend" to the other and the full raised centre chamfered sole plate stamped to the heel "Mod 1A" and the number "9" to the toe - fitted with the original shaft and Golf Pride white rubberised pistol grip