Whittingslowe Engineering of Adelaide were one of the most prolific knife manufacturers of WW2. They manufactured two canoe bodied patterns of Clasp Knife, several different models of Utility Knives as well as the Australian Army Stiletto.
Whittingslowe also manufactured Clasp Knives for other suppliers.
This pattern knife was first issued to troops in 1945. These knives were still being issued from stockholdings at the time of the Vietnam War. There are known examples that saw service during the Vietnam War.
The Whittingslowe second pattern knife is found with an anomally with the markings, some have the number 15737, while some knives are marked 1573/. This has resulted in considerable discussion among collectors. A study conducted by one collector involving careful comparison of many specimens has concluded that this is the result of a broken die. It is likely that the necessity of war time production did not allow for this to be rectified! Examples of both markings are shown below.