let's stick Brit AMC Motor Cycles

AMC stands for Associated Motor Cycles, it was founded in 1938 and was later incorporated into Norton-Villiers-Triumph.  Matchless Motor Cycles was bought and renamed Amalgamated Motor Cycles Ltd. in 1937, in 1937 it became Associated Motor Cycles. AMC was the parent company for Matchless, AJS, Norton, Francis-Barnett, and Sunbeam to name a few.

The Matchless GL and AJS 16M

The AJS 16MC and Matchless G3LC

Matchless 9 DeLuxe and AJS 20 DeLuxe

Sunbeam motorcycles 

S7

 S8