What was the steepest and most inverse (bond) yield curve ever, and
when was it?  It may have been in the forties.  Specifics, please.

hi reese

just a suggestion here but:

a) even with a bloomberg connection (very fast, very good, very
expensive), to research your very wide ranging question would take at
least 30-45 minutes of trawling through data
b) given the VAST amount of research involved and the specific
information that you want, you might consider putting a higher list
price and;
c) you might want to narrow the search a little more by stating which
currency you are interested in