I'm looking for the headline of the New York Daily Mirror on Dec. 6,
1933.  I'm relatively certain it has some connection to the
prohibition being repealed the day before, but the question of finding
the actual headline from this particular newspaper has stumped both
myself and my local librarians.  Any help in finding out exactly what
it said would be great.

According to the WorldCat library catalog the "New York Public Library
Res Library" holds the microfilm for the "New York Daily Mirror" for
the years 1924-1957.  If you already know that date you have to,
depending on where you are located, request a photocopy of the
headline in question.  Or you can call the library and if you are
fortunate, get a librarian to look it up for you.  The "res" I believe
stands for one of their research libraries.  Information about the
library can be found at:

http://www.nypl.org/