That's my SE FDHD's Model Number. M5011.
The back sticker just says Macintosh SE, but the front says Macintosh SE FDHD.
Unfortunately, all SE's share that model number, the original through the Superdrive.
The only way to tell them apart is by their serial number that I can tell.
Running the serial through the decoder (http://myoldmac.net/FAQ/Mac-Serialnumber-decoder-e.php)
provides that a SE FDHD is also Model Number B02. SO Maybe they are M5011-B02 ?
The back sticker just says Macintosh SE, but the front says Macintosh SE FDHD.
Unfortunately, all SE's share that model number, the original through the Superdrive.
The only way to tell them apart is by their serial number that I can tell.
Running the serial through the decoder (http://myoldmac.net/FAQ/Mac-Serialnumber-decoder-e.php)
provides that a SE FDHD is also Model Number B02. SO Maybe they are M5011-B02 ?