Dustin,
You are a better historian than I am, I'm always impressed with the deep dive you do into the history behind the guns. I am fairly certain that I have had a W&S screw grip through with the locking screw on the top lever, but I'm not 100% on that. In reading through some of the links recently posted, it appears the two piece top lever with the word "patent" in the outer circle was used by P. Webley. This has been an interesting thread.
Steve


www.bertramandco.com ACGG Pro
Pope Leo is my war hero
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