Tenchi
Spectator
One of my first viewings of any "bondage erotica" were some of my uncle's men's mags from 60's to early 70's. Many of these illustrations were done my Bruce Minney who passed on Aug 5, which was the same day some of his work was featured on American Pickers. Much of his work featured scantily clad "babes" in varying degrees of mortal danger. A couple examples are below.