Shopsmith Inc. was the first of the Shopsmith tool makers to come out with the Mark V Mounted Planer in 1982 and the stand alone Pro Planer in 1985. I have not seen any other planers related to any of the makers of the Shopsmith tools. The Magna line tools in the 50's did not include a Planer.
Mark V 520 S/N 09-11-01 completely upgraded to Mark 7, with all SPT's & more.
Model 10ER S/N R64000 first one I restored on bench w/ Shopsmith metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ Shopsmith metal ends & retractable casters.