Thank you all for your replies. Mark, my letter order form is on the way!

Thank you for the post with the order book information.
I found a Los Angeles Herald newspaper article from 1908 mentioning W.H. Wilshire leaving for a hunting trip to Calabasas. At the time, Calabasas must have been mostly all farm land or natural chaparral. I also found a page out of the magazine "Arms And The Man", dated June 12, 1913, that shows the results of a tournament and the winners. He placed 2nd in the 20 gauge overhead event, and placed in several of the other events. I underlined his name in the photo of the page below. I don't think he was related to the famous Wilshire, for whom Wilshire Blvd. is named after, but haven't confirmed that yet. Would be interesting to find out how Reid ended up with the gun. Wilshire would have probably been a bit older than him. But the two probably knew each other.