That cocking piece appears to be one of the "emergency" models: no grasping grooves and NO half-cock bent.

I understood that these were replaced with "proper" ones as soon as possible in their service lives.

Just wondering, does the safety catch assembly have a full set of the correct parts; I seem to recall that ther was a "temporary relaxation" that allowed the use of an unthreaded locking bolt and thus the mechanism does not "catch" the bolt