Last year of pink was 1965. I believe the last year of turquoise was 1967. '66-'67 606/806/906 machines had the poly agitator with the same filtration of the Bakelite agitators in the higher end highlanders and up, which included the lower baffle. I'd sure love to find/buy a couple of those early agitators, but they almost always cement themselves to the agitator shaft and usually end up being destroyed in the removal process. They don't have opening at the base of the agitator, like the post '67 agitators, to make use of a puller (just like the Bakelite). It makes it all the more fun to remove them....preferably in one piece, lol.