Kay

Thought to be of c1920's-early 1930's origins, the two puzzles featured here show the type of art deco box graphics normally associated with puzzles of that era. Judging by the number of examples so far seen, jigsaw puzzles are thought to have been a very short-lived venture.

The example "A Chip off the Old Block" quotes number of pieces as 400, a figure which is wildly inaccurate!
I am aware of the Kay branding in products other than jigsaw puzzles, most notably that of "The Electric Wizard-electric questionnaire".