OK, it's starting to come back to me (I worked at a Yale dealer in the '70s). KG51 was a 6 volt system lift. The G51 was a 12 volt that came out in the mid '60s so KG had to be very early '60s or before. I'm can't remember what they looked like but something tells me it is simular to the G51. Do you know what motor is in it? I've got pics and a book for a 1968 G51.
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