Zenith console stereo with tubes (well, a few anyway)

[pac.attack76]

Rescued this from outside a trash ben about 3 weeks ago. Oiled up the finish nicely and everything works. If i remember right, model number is MN2506. It has a few tubes but probably only 4 or 5. Says Solid State amplifier in cursive lettering. I'm just guessing at it being a 69, 70, or 71 model. Any ideas? Also as you can see, I'm missing the rubber turntable mat. Any idea where id find the right one for this?