This lot contains all five Ping putter models that Jack Nicklaus endorsed for Slazenger to sell in England, Scotland, Ireland, Northern Ireland, and Wales beginning in 1967. Slazenger's contract with Karsten was negotiated by Mark McCormack, Jack's agent, who also worked with Karsten to generate a contract for Gary Player, who endorsed Ping Putters for sale in South Africa, Rhodesia, Zambia, and Nyasaland. (And the Putter Went Ping p 93-95)
The Jack Nicklaus putters offered together here are as follows, from left to right as pictured: 1. Ping Golf Clubs Kushin with Scottsdale address; 2. Karsten Co. Cushin with Phoenix address; 3. Karsten Co. Anser (Dalehead) with Phoenix address; 4. Ping Echo with Phoenix address; Ping Echo 2 with Phoenix address. Each of these clubs has its original grip and the Anser and Echo still have the remains of their Slazenger shaft bands, as can be seen in the picture of the grips.
It's not common knowledge, but Nicklaus won the 1967 Crosby and three additional professional events using a Ping Cushin putter. When the USGA initially ruled in 1967 that shafts were not allowed to have bends, which rule the USGA eventually softened to allow bends within 5 inches of the head, Karsten's business lost a lot of momentum and the tacit endorsement from one gigantic player who had to stop using his PING putter.
Jack Nicklaus PING putters are great history and eminently collectible.