Yes, that was the book I was curious about Hans, but anything in that vein would be of interest. (I have the only-published-in-Japan *Bizarre Guitars* book, which has some mind-blowing examples in it, like some of the above, so I don't need that one.)
BTW, I also owned a Goya Rangemaster for a while, and a Burns "Wild Dog" six-string, and some Teiscos and some other wacky instruments.
All cool looking guitars, but none of them beat my Hagstrom III for sound. (I sold my Fender Strat after acquiring my first Hagstrom in a pawn shop.)
I used Hagstroms for the nearly 20 years I was in a band.
We toured Sweden in the '80s and passed through Alvdalen, where Hagstroms had been made. I sent the rest of the band off to have lunch somewhere and walked around the tiny main "thoroughfare" -- which was all of a half-block long. Completely by accident I ran into Karl Erik Hagsrtom, who had taken over the company after his father (who started out making accordions) died.
It was the early '60s. Karl Erik saw the writing on the wall and switched from making accordions to making guitars.
He gave me a tour of the abandoned Hagstrom factory, had me sign his guest book (Mudhoney had also just visited!) and loaded me up with old parts and catalogues.
Karl Erik was a very innovative guy.
I don't play amplified music any more but I still have a few Hagstroms from the old days.