For now I'm going to yell "calf rope" and say that there was a relationship between LLH, and other Belgian makers, and Krupp purely from the marks of several examples:


With the exception that the Belgian maker's sourced Suhl for Krupp tubes but for now I don't see any provisional German marks.

At least it gives a direction in which to continue research.

Kind Regards,

Raimey
rse