Gentlemen of advanced years who can remember CDC, cradle of Cray. Can you tell me which CDC computer type these three boards belonged to? It is for labeling purposes in my personal museum. https://postimg.cc/crJHv3Lt https://postimg.cc/Z0HnYH4h https://postimg.cc/6TtTNgs0 I am sure this will be easy for the right person. Many thanks! peter