I believe this to be an original British-made "London, England" factory piece dating back to the golden era of the 1960s to 1970s.
Vintage Berg Larsen London 110/2 SMS Tenor Sax Mouthpiece w/ Matching Cap & Lig
Vintage Berg Larsen Offset 95/1 SMS Tenor Saxophone Sax Mouthpiece
vintage berg larsen tenor sax mouthpiece 105 2 M
Vintage Berg Larsen Soprano Sax Fully Serviced B&S German Made, In Case ???? Free
Vintage Berg Larsen 105 over 0 M Facing .With Lig And Cap ..