On Sat, 24 Sep 2005, John Allain wrote:
  Subject: Re: Odd floppy drives (Helitron)
  He claims that he was the inventor of the basic
 floppy mechanism ... This was around 1980, maybe 1979. 
 69 ~ 70?
 I mean, by 1980 floppies were down to 5.25" and the 8"
 had been out well over 5 years.  Maybe the guy with the
 knob drive was lying even harder than you suspected. 
Sorry, I was unclear -- I meant I *saw* all this stuff in 1980 or
so, and yes, it was quite old then, but I'd guess (flat out guess)
that it was "new" in the 1960's.