A crux pose from a ca. 1905 mainstream compilation of nudes that maneuvered around censorship by masquerading as a tutorial for posing photographs.
The caption roughly states,
"Rays of hope - An effective nude study on a composition depicting the martyrdom of the crucified"
so they aren't pretending it's anything else than a crux pose,
but interestingly they use the male grammatical form (
eines Gekreuzigten)
so yeah sure, you are totally supposed to use this photo of a nude woman to model for the male pose in your Calvary composition.
Apparently they thought the idea that a female crux pose might represent an actual woman's martyrdom was still just a little bit too spicy.
In general it's pretty hilarious to read excerpts of it
- while the captions very occasionally have valid comments on posing and composition
(and negging the models in the captions was apparently an established thing),
there is next to nothing about photography & studio work,
instead it's unhinged philosophical ranting about the metaphysics of nudity, heartfelt condemnations of clerics & the church, and recurring ironic condemnations of so-called 'pornography' which of course has to be completely removed from society - these parts are so obviously written to appease censorship that one can assume the guardians of virtue got a lot of free copies...