Thanks R, saves me finding my copy of Gordon May's book "By Miles The Best" which, for anyone who doesn't know it, is a year by year compendium of Factory pictures and brochure shots from 1930 to 1970 including a short technical description of each model. Invaluable for the Enfield enthusiast even if there are a few minor errors and omissions! As to spares for these boxes I remember appeals in the Club magazine for parts, especially the cases but have no idea whether these were ever fulfilled....
REgards, Mark