Hello folks, some years ago Patrick Schaefer started to collect Apple chip IDs especially the ROMs. I found this collection and added some. This collection is now available (as part of a private wiki):
https://kb.pocnet.net/wiki/Apple_Chip-Bezeichnungen
You know some more IDs with leading 341- or 342- or you recognize an error? Please contact me.
Or leave a comment if you have some better sources :-)
Regards,
Ralf