The bases on your stands look exactly like what came with the first set I ever bought, which was a 50's Gretsch. When I bought it (in 1970) it was supposed to have been "all original" (according to the original owner).
I'm not saying this to argue that your stands are Gretsch, just noting that what Mikey posted makes sense. Probably another company made this stuff for more than one company, which I think has always been more common than we realize.
In fact, IF I'm not mistaken, that was the whole premise of why "Taye" began making drums and stands -- they actually started off making stuff that was used and marketed by other drum companies, and they didn't market their own name until they were well established. I don't have any documentation to support that, but while I was researching something else I ran across that info somewhere...