The Lark, as in Doug's photo, and the OP, was the first vacuum that I ever used. (Played with)
In my earliest vacuum memories, my family had two of them. I still, to this day, don't know why they had two, nor do I know what became of either of them.
Their primary vacuum was a gold and brown Hoover Portable, and the Lark must have been a back-up, for light clean-ups. I remember that it was kept in the hall closet.
It's still one of my bucket list vacuums. But, I haven't seen another one since childhood.