This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Nobili Pesavento reps. en The NobiliPesavento selfreplicator with daughter copy in the process of making granddaughter copy The automaton uses the state extended John von Neumann rules based on his work on universal constructors and selfreproducing automata Original automaton Renato Nobili and Umberto Pesavento distributed from ftp