Hello Maxey,
Did I see the bbls stamped Hy Andrews Toledo Steel works Sheffield?
I have a rather nice Belgian sle with same bbls, & have seen other belgians so marked, always pretty classy guns.
When I bought mine, I sent it to Abe chaber, who stripped n cleaned it...he found the Britte Co mark under the main spring
Man , I love a nice Belgian Gun
Cheers
Franc