1955 Numismatic Convention New York Medal?

I found this earlier and it is a nice piece. However, I am struggling to find anything at all on a numismatic convention in New York in 1955? It was at the Park Sheraton Hotel apparently? Might anyone know?
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Comments
No idea... I was a freshman in High School that year....collected coins from my paper route, but had no clue about coin shows, conventions or even coin shops....Good luck with your search...Cheers, RickO
Cool medal.
Here's a snippet about it.
It would be nice to go back in time.
""Abe Kosoff: Dean of Numismatics
Q. David Bowers
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Author's Preface
I believe it was in the spring of 1955 when I first met Abe Kosoff. The occasion was a Metropolitan New York Coin Convention, an event held in the old Park Sheraton Hotel in New York City. I don't recall what we discussed at our first meeting, but I do remember being impressed. Abe was one of the great old-timers of the hobby, and I had known him through his advertisements and a file of his old catalogues.""
"If I say something in the woods and my wife isn't there to hear it.....am I still wrong?"
My Washington Quarter Registry set...in progress