Help identify old family roundie

[sweitzel]

I ran across a picture of myself at a very young age with a clear shot of my grandparent's roundie in the background. I was just wondering if any of you knowledgeable AK'ers could identify it just from the picture. Sadly, the set is LOOONG gone although I wouldn't mind finding another like it some day. The picture was taken probably late 1975. I remember grandma always yelling at me to stay at least 10 feet away from the screen or the radiation would get me!