PAINTS

• Seeing that the only enamel paints available in the UK in the 70s were Humbrol, it must of been one of these.
  
  Humbrol only make 2 gloss greys, one which was too pale and the other looked spot on dark AD Grey(5). To backup this up Jez asked Andrew Ainsworth what paints were used on the helmets, "The little small tins of paint." was the reply, these were Humbrol.
  
  Searching for more information, I telephoned Humbrol and spoke to the head of their marketing department, asking him about the history of the paints.
  
  All numbers above 50 were not around in the 70s, so any blues or greys above that number hadn't been produced yet, this was great in narrowing down what colors were used.
  
  A recent conversation with Humbrol one afternoon was very interesting, they did supply the Large film Studios like Elstree with Enamel paint.
  
  Now just to confirm what I thought all along. TE scanned some of the decals from his original ST helmet. The grey on the decals matched the AD grey (photos to come)

AB plate colours

Helmet colours

• All grey parts on the helmet Humbrol Ad Grey (5) was used, Humbrol gloss black was used on the black fine detailing as well as on the Vocoder(mouth)
• The blue tube stripes these differ on helmets, some original helmets had the lighter Mediterranean blue(48) whereas others had the darker Might night Blue (15)

Sandtrooper Backpack Blue Colour

• Above is my "theory" on what colour they used for the Sandtrooper backpack. Now we know the packs were put together by the prop department at Elstree, made up from a boy scout backpack frame and bits and bobs, including Tupaware products and seed trays, UK paints would of been used.
• Humbrol supplied the big Studios in the 70's, the only colours available then were from 1-50. The closest match I could find was Humbrol Sea Blue (47). Looks good to me.