Age of Worthington Climatrol Furnace

Any help identifying this thing would be much appreciated.

Model #168-125. SN: 40AD.

40 AD - pretty old!

tg

ps - sorry for the humor.

Joe, Prestons list it as a 1968

Regards

Gerry

Same age as my wife. I think I’ll call for a thorough checkup.

Thanks a bunch Gerry.