What year/model is this Philco Miss?

Hi,

I need to identify the right model year and schematic/Sam's for a Philco Miss America TV set. There is a number rubber-stamped inside the console that reads 51-0032-1.

I have contacted a few Sam's and schematic sources, but no one can find a match for the 51-0032-1 code.

I have a good bit of experience with tube electronics, but not TV's. Any tips are welcome. The power supply is tube rectified with a 5U4, which makes me think it's very old, but i don't know. It is the model with the channel selector recessed into the top of the cabinet. You push down on the dial and it pops up and lights up. Hope that narrows it down some.

It also has the 5 speaker "Wrap Around Sound" system.

Also, there is a small beige sticker on the chassis that reads: AD 77791

I sure could use some help with this. I've been asking all over the Web and so far, no luck.

Thanks!

Lee