Appraisal of Bundy I Tenor

I have a 1969 Bundy I Tenor with red logo, wire keyguards, and pearl thumb rest with teardrop octave key mech, serial number 47xxxx. Is this a stencil, or just a normal bundy tenor? What's it worth? I was thinking of selling it and adding $300-$500 cash to get a cheap 10m.

It has old but supple and sealing pads, and while I'm not sure if it's leak proof, I can play down to low Bb fairly easily compared to every other tenor and alto sax I've ever played. The only repairs it needs are a to replace a compressed neck cork I've built up with teflon tape, and to replace the side Bb cork and the cork under the low c key. It also has a tiny amount of a hiss when you play g with the octave key.

By the way, it looks like this:
(It's currently at school, but these pics are the same as what it looks like)