Yeah, I don't recognize Arquebusier F. Jacquemin 92 Rue Cathdrale Lige right off and I think it odd using the term Arquebusier instead of Armurier, which considering the Lige mechanics. Maybe the mechanic was a transplant from France? He would have been all but next door neighbours to E. Masquelier 88 Rue Cathdrale Lige. So the name Masquelier Frres puts it post 1911??? What are the tube makers initals?

Wonder what the N.702 is on the water-table & flats? Maybe a subcontractor N?

Cheers,

Raimey
rse