According to their website: (SDS Props
"In 1976...Andrew Ainsworth and Shepperton Design Studios created the original helmets and armour for the greatest sci-fi fantasy film of all time.
Now, almost 30 years on and for the FIRST time ever, YOU can own an exclusive 1:1 collectable replica of the original movie helmets.
Made by the original prop-maker
From the original moulds.
Produced and endorsed by Andrew Ainsworth at Shepperton Design Studio's, these unique props offer collectors a rare opportunity of owning some of the most iconic designs of modern cinema."
Despite this acclaim, I can't find anywhere on the site that actually says they are LICENSED (although, I've always just assumed they were).
That other website
is supposed to have a review here
, but the website is down at this moment.