New Zenith porthole, finally!

[ShartZenith]

Okay you Zenith "roundie" guys, its time to celebrate. After a year of serious searching I finally found what looks to be a nice, restorable TV locally. Just got it home about an hour ago and am looking it over. Appears to be a 1951 Tennyson model H2445R, chassis 24H21. Has a one larger splotch where the finish is gone on top and one major gouge. Rest of the cabinet looks useable as is. The chassis is dusty. Seems like I recall care need to be taken when removing the chassis. Something I recall someone said about the knobs being removed a certain way? Anyway, I'll have my friend Bob's assistance restoring it and that's a good thing. He helped me make my Predicta work about one year ago. No, I don't really know if the picture tube is good. How should we check it before we spend a lot of time on recapping, re-tubing, etc?
Thanks! SteveCopy of IMG_4222.jpg

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