gonna bump an old thread here...
I have a '56 model of the same (model 4085), a little older than yours. Yours may be as late as the late 60s, the V-shaped badge is later. Before the bottom dropped out of the economy, I found that mine in fairly good shape, unrestored was ~$700 and VGC/restored were as high as $1300. Now, the values are going to be depressed a bit due to market conditions for collectibles almost across the board.
They were the first home radios with a built-in amplifier, BTW.