This is a flyer signed by John Challis and Sue Holderness. I bought it on Ebay.

Back To Doctor Who

Back to TV Actors

Back to TV Actresses

John's IMDB Entry: http://www.imdb.com/name/nm0149998/

Sue's IMDB Entry: http://www.imdb.com/name/nm0390347/

John's Wikipedia Entry: http://en.wikipedia.org/wiki/John_Challis

Sue's Wikipedia Entry: http://en.wikipedia.org/wiki/Sue_Holderness