I wouldn't doubt for a second that Krupp used the same, or a similar method along with many others. If so, it would seem to validate what we've been inferring about the Krupp steel tubes for a time.

I wonder if there was a satellite "Use Number" stamping sight for A&D in the Suhl area or were all shipped to Auguste Francotte, or some other agent, in Belgium?

Kind Regards,

Raimey
rse