Yes its:
http://www.sanctuarypublishing.com
The forward explains how it came about.....
Rick Nielsen of Cheap trick had already published a guitar collection book which John Entwistle liked the look of and told him so when they met at the 1995 NAMM convention.
Nielsen put him in touch with the publishers and assembled the same photographers to do the Bass culture book.
Lots of the Ox bass collection went at auction after his death and I seem to remember mention of someone getting the 4001/8 so its around somewhere.
The Rickenbacker section of the book doesnt include the RM (where is it now?) unfortunately but it has the "Tommy" 4005 which is described as a Rickenbacker"Model 31" (any ideas on that?).
Theres a 1965 360 mint never played with tags in the collection!
Paul,who has Chris Squires 4001/8 now?
John and Chris's 1973 4001 eight stringers were a pair and it would be good to see pics of both together.
I dont recall seeing Entwistle using his but I saw Chris use his eight string on the Topographic Oceans tour through to the Going For the One tour.
Some of the live recordings of "Roundabout" encores from this period have the eight string high in the mix.
Johns bass can be seen in the background on the video of the "Who are you" rehearsals with Kenny Jones prior to the first Who gig after the death of Keith Moon.
I went to that one at Wembley football stadium but as I say I dont remember seeing the Rick at that one.
I do remember the PA cutting out during AC/DC but you could still hear Angus Young playing guitar on top of his Marshall stacks!