Automaton of a demon levitating a playing card
This is an electrically powered automaton. A card magically rises out of the pack while the demon waves the long pole around to show that there are no wires holding it in space. The card then descends back to the pack and the cycle repeats. The automaton was not in working order until Cambridge magician and engineer Tony Middleton repaired and upgraded it in 2014-2016. The original age of the automaton is probably mid 20th century. We do not know if the automaton was ever on display at Davenports shop.