three and a quarter inch floppy?

[Gene Ehrich]

I received the following from a friend in California.
Can anyone here help answer the question?
Thanx in advance

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Have you ever heard of a three and a quarter inch floppy?    I never have, 
but that doesn't mean anything.  I am being told that between a 5.25 and a 
3.5 there was a 3.25.   Ever heard of it??? ------ and if so do you know 
anything about it?  manufacturer?   Used by whom where?  etc.?