What was this called? It was the first of its kind, created by a famous German inventor. All clues are in the image. We’re looking for just the name of the thing below :)

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Answer:
The Elektromote – the world’s first trolleybus (aka tram-like-thing-that-doesn’t-need-rails-but-uses-electricity-from-overhead-wires-instead), invented by Dr Siemens himself!