The 50-Watt Park amps looked similar to the 45-watters but didn't have the tube rectifier, so have a little more punch. This one is from 1967 or 1968. I don't know what the deal with the orange handle is but maybe someone at a tube company will think it is collectible. Otherwise it just looks like a piece of Hot Wheels track. This one has black knobs with white pointer rings at the base.
Close-up of the
knobs on this amp.