Hans Daedalus has defected from East Germany to the West. Is it possible that his opacity equations live on after his death?

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Main Cast: Michael Bryant, Megs Jenkins, Peter Sallis, Estelle Kohler, Richard Hurndall, George Coulouris, Eve Mortimer, John Atkinson, Rod Beacham, Elizabeth Choice

Director: David Reid

Writer: Bruce Stewart

Editor:

Cinematographer:

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