Here we have an unrestored American export model BSA Rocket Gold Star 
Dispatched November 1962 To BSA Inc New Jersey Sold by Pipers Pennsylvania dealers badge still present ! 
Note the colour metallic red  (still original paint) flanged alloy rims folding front foot pegs all features of the American export models I’m told.

This RGS also has a twin carb cylinder head !! 

Those handlebars will have to go though Ride or Restore…… ?