LesinUtah
Les,
The Janitronic, produced from 1967 to 1969, had the same coppertone trim as the 562 to Dual Sanitronic 50. It was also the only one of the 18" wide commercial cleaners in which the head could easily be removed, to clean the fan case of hair and lint.
The first American-Lincoln Super-Sweep, in emerald green (the one you are still looking for), has the standard 2-wire type cord set (models 516 to Tradition 3CB). It also has a riveted model plate. It was produced from 1969 to 1974 and ran from serial nos. 1001 to 110000.
The second one, which recycled the Dual Sanitronic 80's army green trim, was the first to have the 3-wire cord set and the mylar name plate. It was produced from 1974 to 1979 and ran from serial nos. 110001 to 210000.
The one I want, in blue and white, was the first one to have the Classic-style carbon brushes, carbon brush holders and field terminal clips. It was produced from 1979 to 1982 and ran from serial nos. 210001 to 285000.
~Ben