This thread has some info. It seems the first 858 was the pumpkin with seal greige, then pumpkin with medium taupe and later poppy red on top in 1974. Not sure where the green fits in but apparently the last Canadian Constellations had lime green (model 888).
I noticed some pumpkin 858 have "60 cycles" on the bottom rating plate, where later ones read "60 hertz" instead.
[URL unfurl="true"]https://www.vacuumland.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?11182[/URL]
