Game 1: Richard Kollmar (as Mystery Guest #1 and the panel is blindfolded) - He had two overlay screens which read: ""Dick Kollmar (Dorothy Kilgallen's Husband)"" and ""Broadway Producer, Plain and Fancy"" (self-employed) Game 2: George Petty (He did not sign in to avoid name recognition, he was called Mr. X) - ""Artist George Petty (Creator of the Famous Petty Girl)"" (self-employed; this pin-up creation was an American icon that lasted from 1933 to 1956; he told John he was currently working on Esquire magazine's calendar; from Scottsdale, AZ) Game 3: Garry Moore (as Mystery Guest #2)
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Ready to Watch Whats My Line, Season 7, Episode 12?