My father had a Big Boy jack. I think it may have come with the `39 Chevy that he owned, but I could be mistaken. It might have been with his 1950 Olds. It was around as long as I could remember. He was not the kind of guy who would go out and buy a jack for use with his car or around the house, so I assume it came with a car -- but I could be wrong. Wish I still had that jack, but alas, I left it in the garage when we sold the family home back in 1995. I used it for years to do all kinds of repairs on my first car, a 1968 Mustang GT. The handle folded in half and the end that fit into the jack was a simple T that you would place in the female end vertically and then straighten out for lifting. When straightened, the handle would not come out of the jack, so you could slide the jack around the garage floor pulling on the handle. The thrust bearing was probably the weakest link on the jack because I pretty much wore it out from use and overuse, and probably abuse too. A place to get a thrust bearing that fits might be Grainger or McMaster, and others may know possible routes to go if yours needs a thrust bearing. The platform was a dull red. The scissor part was gloss black. As scissor jacks go, it was probably one of the most stable with a wide foot and a decent lift platform. Wish I still had it. That's about all the info I know or can remember. Brought back great memories, thanks for the post. Cheers, JimDon
PS. Stable yes, but NOT for use when under a car. Even as a stupid kid, I knew you had to put jack stands underneath.