Not sure of the age but it was in my grandparent's bedroom in 1977. I have a photo with me as a baby and its there.
It's painted on a wood type material like a cardboard and framed and the brown paper is still on the back with the Windsor Industries sticker.
See photo with sticker
Circa 1977...probably older. I was born in 77 and it is in a photo with me and my Grandfather when I was less than a year old.
Size and dimensions of this item:
Approx 5' by 2'
Less than 2 lbs
Its been in our family since 1977 at least. Purchase price and date unknown.