Lot 70 Doctor Who/Tom Baker - The Creature from the Pit: an original prop 'eggshell' photon drive, BBC, 1979, the hollow 'eggshell' of mixed media resin painted in mottled grey paint, with part of a computer mother board glued to the underneath.
The underneath with grey paint to the edge signed and dated by Tom Baker in blue pen, an identical prop can be seen when the Doctor finds the fragment of 'eggshell' which is the 'creature's' space vehicle's photon drive; together with two dyeline copies of construction drawings for the set, the photon drive, 23 x 20 x 4cm (9 x 8 x 1½in).
FOOTNOTES The vendor was the studio design assistant for these episodes.