Funny because that vintage tripod link shows a photo of a design that I recognize. Someone gave me a tripod like that back in the 70s. I remember the foot getting stuck in the mud and losing the rubber end. Oh wait, the clamps are newer, mine has threaded locks on the legs. That one must be much newer, like the 80s.
The brand on it shouldn't matter because I suspect they are private label MIJ units that were sold to anyone who wanted to have their own brand of tripod. Just pay for the nameplate and there you are.
If your original question was replacing the head, you can find them at any good photo shop, if the top of yours is standard. If it's a specific design, not standard threading, or mounted on the pipe, you may want to invest in something a little better anyway.
I know, I get sticker shock when I look at tripods, and have about a half dozen crummy ones, that I use for holding umbrellas, flashes and lights. I still need one really good solid one some day, but since I shoot on the move and with a monopod, so far I've escaped the inevitable necessary, good solid tripod. Indoors I have one that's big, heavy and strong, mostly held together with duct tape, and the legs are pretty much one height, because all the clamps have snapped. Great buy at a rummage sale for $5.
