I agree with Brad, and here's an example of 'British Best Laminated Steel', the winner of the Birmingham Proof House Trial
Steve: there were both English and Belgian 'Saxton' guns; the English usually have W. Bentley Pat. and Birmingham proofs. The Belgian were by both Ferdinand Drissen and Neumann Freres
http://www.littlegun.be/arme%20belge...issen%20gb.htm
Please keep in mind that both English and Belgian guns with Twist barrels are frequently marked "Laminated Steel", and the vast majority of tubes found on Birmingham, and some London, guns were sourced in Belgium.