Yes indeed they would have been, and hand applied to boot. My attempts on my ES2:
Done with One-Shot signwiriter's enamel brush applied between 3mm 3M tape. It works well but gold paint is a different matter. Here is the same technique I used on a Sunbeam I restored some years ago:
Unfortunately the gold lacquer I used was far from petrol resistant even with halford's allegedly petrol proof lacquer.
With the XBR I have spent much time and effort on the red finish so want to use a simpler method hence using pinstripe tape. I did use the tape for a restoration of a Francis Barnett a couple of years ago but only 3mm narrow stuff so the bends worked fairly well. However you can see an imperfection in the tight curve behind and below the knee pad. I wouldn't get away with that using the 6mm wider tape hence my thoughts of keeping it simple.