|Photo of Circle Dot Recording Studios, from back of Minnesota Rockabilly Volume 2 LP|
I believe this was one of the labels owned by Dave Dudley. No hard evidence though, so don't quote me. They only issued a handful of 45s (probably 500 copies each) and no LPs that I know of. I think they were mostly a song publishing company.
This blog post has much more for further reading:
Circle Dot 103
Label location: Minneapolis, Mn
Pressed by: RCA
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