Thomas Harrower's patent putter has a unique neck joint covered under a British patent issued in 1911. A threaded rod in the base of the shaft screws into the base of the hosel. The rod has a left-hand thread so striking the ball will only serve to tighten the head, should it ever come loose.
This example is in nice original condition. The head was once tinned, but most of the tinning is gone. The club still looks good. Harrower's heart cleekmark and the stamps "Harrower's Patent Putter, No 4326/11" are still visible on the toe. The shaft and grip are original. NIce to find a Harrower putter with a neck joint that will still unscrew over a century after it was made.
This club is shown disassembled to the far right in the accompanying group picture. For more on Harrower's Patent putter, see The Clubmakers Art 2nd Edition, volume 1, page 185.