"No Mirror"-Who is the artist??

I acquired this signed piece, called "No Mirror" many years ago, it measure 15" x 25". It was with a bunch of other art-mostly abstract artists from in and around N.Y.City. Some well known. I cant for the life of me crack the artist signature-which is written in pencil..I'm guessing it might be from the early 60's? I would love to hear any suggestions.