Flea Circus in Tivoli Gardens with Else Torp

Thanks to Magic Puk I got to see this video of a Historical Flea Circus in Tivoli Gardens run by Else Torp. One interesting fact is that she used platinum wires rather than the gold mentioned in a lot of other historical examples. It's also very clear from the film that the fleas are doing the pulling and also that they are walking not jumping which would imply some conditioning on top of the fact that they are restrained by the wires.