[quote name='ginie' date='Oct 24 2011, 05:05 PM' post='208764']
I've found the answer : it's in 1955 in New York:
"Marilyn Monroe joins leaders of the Junior Division of the United Jewish Appeal of Greater New York at a fund-raising dinner circa 1955"

Ginie !! Awesome. Thank you so much for sharing that rare picture of Marilyn amongst all those men. Great find !