Agreed that round vacs are hard to position on most stairs, but regarding onboard tools, G-E made an optional onboard caddy for its canisters.
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Coincidentally, I happened to recently catch LEAVE IT TO BEAVER character June Cleaver vacuum the boys' room with a G-E Swivel-Top. The Season 4, Episode 12 episode, "Beaver & Kenneth" originally aired on December 17, 1960, Based on the attached catalog photo, originally posted by compactelectra in 2007—with the floor and rug tool I recall seeing—I'm guessing it was a Model C-12. That's the best I can do having limited G-E vac knowledge and being caught unawares.

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Coincidentally, I happened to recently catch LEAVE IT TO BEAVER character June Cleaver vacuum the boys' room with a G-E Swivel-Top. The Season 4, Episode 12 episode, "Beaver & Kenneth" originally aired on December 17, 1960, Based on the attached catalog photo, originally posted by compactelectra in 2007—with the floor and rug tool I recall seeing—I'm guessing it was a Model C-12. That's the best I can do having limited G-E vac knowledge and being caught unawares.
