Murray Korman was a theatrical and portrait photographer active in New York City. I haven't been able to find exact dates for when he started his studio or his retirement, but I have found references to him having shot silent movie stars. Too, at one time he did the mug shots for Joliet Prison. I haven't a last name for these two ladies who look enough alike, that they could be twins, or at the least sisters. When I scanned this photo, I cropped the borders off, and lost part of the inscription. It reads, "To Eddie, Will never forget the grand time in Las Vegas-thanks to you! Best wishes always Jeanette" If they were playing in a Las Vegas showroom, they were probably there in the 1950s.