1920:
Burton Sparking Plug & Motor Accessroies
Burton Spark Plugs 1920 Advert
Rec. Num. 1 of 2
Source: The Motor Cycle August 26th 1920
1920:
Burton Sparking Plug & Motor Accessroies
Burton Spark Plugs - The Burton Plug 1920
Rec. Num. 2 of 2
Source: The Motor Cycle March 18th 1920