This is a clean set! Check of the hoses, valve, and a good polish job and these will be beauties! So many early pink 'Tag sets lately - where are the turquoise sets?
Two key giveaways are the type of agitator and the tub lid. The AMP type would need the lid switches for water level, and the Gyratator float. Unless of course they had the timed fill. But the 140 (AMP type) of that era had the lid switches, along with the lid water level control.