Re:
Have got what looks like a slightly older one of these that I'm attempting to rejuvenate for a friend.
The BB had me totally stumped, and until I found the pics of yours, I hadn't found anything else about 'em, and was starting to think it might be an old bmx or tandem style BB!
I'm just hoping the deep 27mm socket I've ordered will get the side plate off the BB, as it kind of feels like there's way too much pre-tension and quite grindy.
On the one side I have got the cover off, the cone is not budging (at least not with limited purchase of pipe grips), what tool did you use to unscrew the cones?