WOWSER!!!! You guys are good!!!!
You just turned a "what is it" piece of scrap metal into a cool find!!!!
The Triumph sounded right even before I followed Don's ebay link. This lug wrench was in the bottom of a tool box at an estate sale. I bought all of the tool boxes at that estate sale. In one box was a jack for a Porsche or Volkswagen. IIRC, there was also a Triumph owner's manual at the sale.
THANK YOU!!!!!!!!!!!!!!!!!!!