There are many connectors out in the world. A lot of them are old but get still used. And once every while you might need an actual great drawing / scheme of such a connector.
There’s a place for all your needs and curiosity. It’s bitsavers.org.
Just take a look at this drawing and cut-away of a coax connector from the 1976 AMP product catalog:
There is lots more, just take a look at bitsavers. Especially the software bits archive of (very) old computers software and sources. Just wow.