Thanks Peter. Revdocdrew had brought that to my attention before. I've seen pattern welded tubes with the same stamp. I would have guessed the tubes to have been sourced locally. So is it a 3 cornered deal with Krupp/Syndicat Liégeois pour la fabrication des armes de guerre/Daly contractor/source? Have you seen any other "Sl" tubes with Krupp steel?

Kind Regards,

Raimey
rse