The original magazine cover for this piece “A Man…A Woman…and 1968’s Most Terrifying Survival Siege”
Born to Polish and Austrian parents of Jewish heritage in Brooklyn in 1927, Kunstler is still alive as of this post (96 years old). His work in Stag magazines and pulp fiction paved the way for later historical and movie poster art (including The Posedon Adventure). It ranged from chauvinistic, salacious, exciting, violent to utterly absurd (see the Pangolin attack below) but with an undeniable flair for composition and storytelling.
According to the magazine, I believe she is actually “simmering.”