As far as I know they never made two piece heads.
Cartoucherie Francaise or SFM are better options.
I know not much help, But maybe it is a start.
Thanks Rene, I saw the SFM primer of course but of the few “cancelled” heads I have seen I have never seen one done as heavy as this is.
This is sure MGM = Metro-Goldwyn-Mayer (Film company)!
1.st April!!! :-)