agree - looking at the old byte archive(s) we got up on the site. the older apple ads had a sketched liked quality to some of the cutaway drawings. Its why I thought it was period / familiar.

The Atari art style is equally unmistakeable. I have a coffee table book devoted to their art...

art of atari book - i have the hardback and iTunes digital : https://a.co/d/3X4mHWX