This is a long shot, but no harm trying, having scoured the web in vain...
I'm trying to find information on the fbit font format. Even better would be a utility to convert fbit fonts into .bdf files or some other less obscure format.
fbit fonts were used to encode Han bitmaps in early versions of KanjiTalk etc. (i.e. dating back to the System 3.1 days). In the old days (circa 20 years ago) apple was meticulous about archiving old documentation and softwware, but that philosophy sadly died quite some time ago.