OK, I just did some research and The Grip Test, Twist Test and Pistol are not by Mathewson at all - but in fact by CHARLES ARTHUR BARRETT AND ALFRED BARRETT!! I just found the Patent for the Grip Test dated 1891.I still need to find the other two Patents but give me another 20 mins......The date given for these machines is 1895 and they are commonly attributed to Matthewson. Why? I have been unable to find patients for any of them. The have no name on any machine I have seen. The Footballer, Cricketer, Mermaid (yacht racer) and Artillery Duel patents are all known. They may well be older than 1895. Does anyone have information to help establish a firm attribution?
US 459062 A
It's no wonder then that the photos show the Grip and Pistol with the Barrett horse race in the middle!
In fact on just reading the Patent a little closer it states "Patented in England February 14, 1890". And in three different Aussie states too amazingly.