Nifty 8x10-inch color portrait in his prime, boldly signed in blue felt-tip marker in-person at a film convention appearance several years ago. In very good condition. Gifted child actor Billy Mumy is best remembered for the role of Will Robinson on Irwin Allen's beloved sci-fi-themed sitcom "Lost in Space" (1965-1968), and for his two appearances on T.V.'s "The Twilight Zone" (1961).

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