Thank you for the responses. I know the history of the Webley Fosbery and what it dates to. While the Wild West was "officially" over by 1900. I think there were a lot of areas in the west where there were pockets that were still pretty wild. For example, the Arizona Rangers weren't created to combat lawlessness in Arizona until 1901. Also, my grandfather carried a Colt in his waist band (with the loading gate flipped out) and had a Winchester in his truck on his property in southern Arizona well into the 1950s that he said were for "varmints."
As far as shooting the Fosbery in a sanctioned match, given the value of this puppy, I will need to think long and hard about it.