Scooby-Doo and the Witch's Ghost Original Production Cel Signed by Bob Singer and Iwao Takamoto: Scooby, ShaggyScooby, Shaggy MEDIUM: Original Production Cel on Printed BackgroundIMAGE SIZE: 10. 5" x 9" PRODUCTION: Scooby Doo and the Witch's Ghost, 1999SIGNED: Bob Singer and Iwao TakamotoSKU: IFA11290 ABOUT THE IMAGE: The Hanna Barbera cartoon, Scooby Doo, Where Are You? was launched in 1969 and has had the longest run of a cartoon series. Over the years, the franchise has been adapted into 19 TV series (on CBS, ABC, the WB, Cartoon Network and Boomerang),