Found on craigslist 2019. I got it with a 1541 Disk Drive and a Commodore printer. The power switch was not making good contact and I nearly ruined it trying to fix it. I found a near match on DigiKey and managed to connect it to what was left of the vias.
Mine has the short-board with the HMOS chipset.
|PCB||ASSY NO.250469 / NO.252311 REV A|
|ROM||251913-01 ©1984 3789, 901225-01 ©1982 3789|