'73 and '74 single-pickup 4000 models are rare enough, but these are also from Randy Bachman's collection and they're only estimating $2,000-4,000 price. Both descriptions say they were studio played on BTO's '75 album Four Wheel Drive.
The '73 Fireglo has a replaced bridge: https://bid.juliensauctions.com/lot-det ... -4000-bass
'74 Mapleglo here looks like original: https://bid.juliensauctions.com/lot-det ... -4000-Bass
Maybe a chance to own a piece of music history? If not a rare 4000 model...
![Image](https://i.postimg.cc/FF0bjFwt/bass1.jpg)
![Image](https://i.postimg.cc/pdnC4fcr/bass2.jpg)