Olympic TV Console... Late 50's??

[Magnavox300]

Picked up this nice looking Olympic console today...
I think it's my favorite set so far.
Has all the styling you would want from a 50's console.

Has what looks like a 21" tube, along with a radio, and phono.
Everything is original, and still in very nice condition.
Only missing one knob, hopefully I can find one someday...

Turned it on, and some expected hum, and a bright line across the screen,
so hopefully I can get this set back up and running soon!

Came with the 4 legs too.

Not sure what year this is, my guess is '57-'58?

There was a half of a tag on the back that read KA2...
I haven't had a chance to open the back up yet.

Anyone familiar with this set?