Seller changed the date, and added the bit Will quoted.
 
Peter

Pythagoras would hold me in contempt.  

Is this for real..
 
I thought John'd sold off his Alembics ages ago..

If it isn't him selling them off it could very well be a collector who snatched them up trying to turn a profit.

 
The real Easyville according to Bernard Purdie

I spoke with (emailed) the seller a few times.  He's works with Fleetwood Mac and was instructed by John to dispose several basses - including all three of his Alembics - graphite, metal board and #27.  He also has the Starfire used with John Mayall & the Bluesbreakers.  Number 27 is not for sale - a suitable museum/shrine is sought.  The others are up for grabs.
 
Bill
 
 

The stainless fretless is for sale !!! :-O
 
Dear Santa . . . I can't afford what he is asking for the graphite one and am sure the stainless steel will be just as steep. But man-o-man would that be a cool bass to have!

i don?t know if the description changed, but it is written 1976...

It did change..was '73

Was it a 73 body that they modified in 76? I have no idea, just asking for personal amusement.
 
It would be cool to own one of his basses but for the price I'd rather order another custom.

This one's definitely not a 73..