I researched EB0F's pretty hard when I got one. I have this magazine ad somewhere with the epi fuzz pictured, but this is
the first time I see one for real. I love it! The EB0F's are rare and pricey, but does not seem to sell fast when listed. I followed a few (!),
and some was on ebay a couple of years at a steep price before taken out and relisted later.
I had some correspondance with gibson too, it was more like 'have we made a fuzztone bass, are you sure?'