I bought my 1st rifle kit and pist from Bob Tingle in 1976Bob Tingle, Shelbyville, IN. There's a write up on him in gundigest. Over 15 years ago but still informative nonetheless. His 44 blackpowder magnum revolver predates the Ruger Old Army. He built rifles and single shot pistols also.
You are one of the lucky ones to own one.
Welcome to the forum.
https://gundigest.com/more/classic-guns/tingles-creation-still-amazes/amp