You shouldn't ask what it's worth, because then your thread will be exiled to Dollars and Sense and never get answered, because the people who might be able to answer that question hang around here in Turntables. So instead it's better to just ask if anyone knows how good the tt is.
The other thing is that Toshibas are very uncommon, and when you yourself google it and come up with nothing, don't expect miracles here. If you want answers, how about describing the tt. What kind of arm? S or straight? If straight, is it p-mount? Belt drive? Direct drive? Quartz? Automatic, semi, manual? Is the cartridge removable or integrated in the arm? Just with this information we can deduce a lot about it. And then, of course, a photo would be extremely helpful.