I'm going to disagree with several things that have been said here.
First of all, I will agree that this instrument has very low market value as is and not much more in good playing condition. I would guess it's worth $100 as is and $400 in good playing condition.
That said, it will play just like a Buescher True Tone of that age, which means superbly. The keywork design is older, which means it differs in a few minor details from the current style, but it takes at most a few weeks to adapt to it.
Also, the fact that it's still got those old white pads is a good indication that it hasn't been played much, which means there's a real good chance that the keywork is all relatively unworn. It's very likely that instead of an extensive "overhaul", what's really needed is all new pads and corks and felts, a good regulation, and a polish. I would rather have this than a Yamaha 50 series that's been used in marching band for the last 20 years.
There is no earthly reason why a beginner cannot start on a Buescher True Tone.
A horn like this is not "lamp material", it is a high quality instrument that needs all new soft components. If you are thinking of a saxophone as an investment, this one certainly isn't that, but if you're thinking of a saxophone as a musical instrument to play rather than worrying about how much you have in it and how much you could get out of it, it's just fine.
I would say that I wouldn't start learning saxophone repair on an instrument that needs all pads corks and felts; start with simple stuff.