Thanks Mr. Brown for the verification. It would seem that from the above one could extract or the take-away would be that if you have a double with the Simon Heurtier encircled S.H. & Cie stamp that there's a pretty good probability that the raw forgings were sourced from a Belgian tube maker. I'll have to see how many examples I can locate and how the numbers actually play out.

Kind Regards,

Raimey
rse