Bud was the son of Paul Tutmarc. He was well-known in lap steel circles as a player, and he also made lap steels and a few basses under his Bud-Electro Serenader brand in the late 40s to early 50s. Despite what the listing's description says, I sincerely doubt this is a Jazzmaster copy '58 or later body. The cutaways are different from a Jazzmaster, and AFAIK Bud didn't make anything that late.
So Leo Fender didn't just take the fretted bass guitar idea from Paul Tutmarc and kept quiet all his life when hailed as the inventor of the instrument, he also copied the offset body from Paul's son Bud?
And came up in 1958 with an almost identical shape? I doubt it. Especially after having never told anyone that he knew about Paul Tutmarc's Audiovox #736 bass.
Leo didn’t invent the idea, he made the first commercially successful electric bass.
Retrofret is local to me if you ever need anything.