[M277]

Yes, this was what immediately came to my mind as well.

For an interesting, albeit slightly unrelated read, see:

https://en.m.wikipedia.org/wiki/Chip_art

>"Prior to 1984, these doodles also served a practical purpose. If a competitor produced a similar chip, and examination showed it contained the same doodles, then this was strong evidence that the design was copied (a copyright violation) and not independently derived."