The Lovely Model E (and its Automatic Counterpart)
When my parents first were married, in 1973, my dad's father bought my parents a $50 rebuilt Model E (not the automatic one) as a wedding gift.
I remember that vacuum distinctly, with its chrome halo around the blower end for cord storage and the hammertone finish of the body. The Model E wasn't much different from the ensuing Model S, R, and L (although there were slight differences between said machines...yet the motor and body style remained the same).
The Automatic E resembles the Automatic F in many ways, save for the fact that the Automatic F was made in a gray/off-white color scheme and had an outlet for a power nozzle.
When I acquired my first Model L, my mom (who was the owner of a Model E in the '70s, mind you) mistook it for being the same machine she had when she got married.