I think it may be 1959. I'm not as lucky. I have the metal cabinet "Portable" 16" version of the 300 series, and it has major remote problems. Motor keeps going, or jamming, Or, switches just sit, and spark at you, depending on its' mood. I have bad switch in main solonoid, and before that broke, Motor would only switch one station at a time, and stop for every one, no matter how you had it set up. Switch on back of motor had a tendency, also, to arc. Still need to fix that one, and I haven't even re-built tv yet!! Did re-build remote amplifier, though. Seems this set has had alot of use, abuse, though looks wise, it's in very nice shape.
