''Back to the Future II'' cast-signed ''Grays Sports Almanac 1950-2000'', the exact replica of the prop book in the movie that prompts Doc to warn Marty not to profit from time travel. Front cover is signed in blue felt-tip by the cast, Michael J. Fox, Christopher Lloyd, Lea Thompson, and Tom Wilson, most of whom add their characters' names. Book measures 6.25'' x 9.25''. Near fine condition. With COAs from Celebrity Authentics.