Rear case unit from a 110V (US) Macintosh Plus. The rear label is the only difference to the 240V version, but it is NOT interchangeable with the Macintosh 128K or 512K models. This A-grade item may still have some slight yellowing but is in excellent condition.
As with the original Macintosh, this rear case has the original Macintosh team's signatures embossed inside.