Dynamation is basically CGI before CGI was a thing. It was limited but it is truly amazing what they where able to make with it and there was no one better then Ray Harryhausen.

https://www.metaflix.com/stop-motion-master-ray-harryhausen-and-his-jason-and-the-argonauts-creation-1963/

https://www.britannica.com/biography/Ray-Harryhausen

http://www.unmuseum.org/dyna.htm

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