The original R2-D2 chassis was specially created by English firms Petric Engineering and C&L Developments.
Shepperton only made the Trooper helmets armor and other helmets that were vac formed.
Hope that helps
All R2D2s from all of the first three original films episode IV V and VI, were produced and """"built""" by Norank Engineering... In elstree Borhamwood, next to the Estree Studios. - no where near shepperton?
To my knowledge none of chassi's or heads was fibre glass, all the chassi's and heads were manufactured in Metal.
Norank Engineering is the company that built all the full size film stages for all Star Wars film, indy films, and James Bond films. They also built all full size vehicles as well as droids and robots, all props weapons and they build all the lightsabers as well. Including the machinal luke saber for ROTJ wich was never shown.
The the reason i know this, is because i used to do a lot of prop restoration work for the 'late' Nick Harrison, who was the son of the man who owned Norank Engineering, who was personally involved in the star wars films.
And i have seen his dads personal port folio of Norank Engineering for every droid, weapon, full size ship, vehicle, and prop and every single full size sets of which no pictures are in the public domain, take my word for it.
And i know for a fact, that Norank Engineering never ever copied anything or sold it on after finishing on a production.
So this ebay seller what ever there name is, has either been riped off by a conartist, or shes fraudently advertising.
If it was a Norank Engineering orignal, it would have offical manufacture documents and certificates. """"""And it would be registered"""""
But Norank enginnering only made the R2 units for the original films, so this does not discount the what ever the company was, that made the R2 units for the episode I II and III
Jonathan