Does anyone know the lowest 586-2 serial number?

[Wreckless]

What month/day and or serial number started the changeover? Thank you.

 

[Kernel Crittenden]

The ONLY M586-2 (BBB) I've ever seen was dated September of 1988. The earliest M686-2 (AZA) was March of 1988. By June of 1988 the M686-3 (BAN) was already being sold. This is just what I've seen, so it's a pretty small sample and not written in stone by any means.

The SCSW only rarely gives months for dash numbers change overs.

 

[Wreckless]

I just purchased a used (AYR) M586-2. It has to be a very early piece. Should be a late 1987 manufacture model.