This giant niblick measures 3 5/8" in face depth and retains a nice old patina. The back of the head is stamped with William Winton's diamond cleemark and "The Last Word in Niblick, Hand Forged, Special, James Watt, North Berwick." James Watt was the Pro at North Berwick between 1926 and 1932. He also stamped the shaft "Jas Watt Special" Shaft is original and black sueded leather grip appears to be a recent replacement that matches up well.
This giant niblick is easily recognized in the accompanying group image.