This is an interesting article (click here) written by Charles Falco of the BSAOCGB. The tile says “The World’s First 1957 Rocket Gold Star” However as you read on it’s clear it should read “The first 1957 Gold Star Spitfire.” Current information indicates that only 424 were produced. Below are some pictures. G. Ullmann
1957
"This 57 was a parts bike. It took a long time to find the correct parts to make the bike original as a 57 spitfire. I found the correct crank , ScrT2 trans, exhaust pipes and 376 carb." John Batchel