trev13
Trevor,
Your 511 was built in 1951, and it would originally have had gray trim all over except for the belt lifter and wheels.
My guess is that this was rebuilt by a Kirby service center in the late 1960s/early 1970s, hence the newer red trim for the nozzle and headlight bumper, the push/push foot switch (both of these first appeared on model 513), and the bag that I see here.
~Ben[this post was last edited: 5/6/2020-23:09]