Gaming theory: Doctor Who Terror at Devil's Bay Location

Creating game landscape for 

the Sea Devils: Terror at Devils Bay

HMS Seaspite as set up for Cangames 2019 in May.

One of the challenges I faced creating my Doctor Who game based on the Sea Devils episode: Terror at Devils Bay was how to create the key feature the Naval base HMS Seaspite (as it is called in the TV episode the Sea Devils) which was filmed at HMS St George, Fraser Gunnery Range.  Unlike a historical scenario a Sci-Fi scenario offers more options.  Why does it matter?  I think for two reasons firstly it help to create the most accurate or atmospheric recreation of what the game is based on, and secondly it can impact play balance.  Plus it is an opportunity to compare images of the game set up versus what the actual base that was used for the film shoot looked like then and now.

Roofing material

Walthers Roofing material

I tried out some of the Walthers Cornerstone Roof Texture material on two of the flat topped buildings I used for my Doctor Who Terror at Devils Bay game and was very pleased with the results.

Post game picture showing Walthers roofing ballast

Unidentified 28mm Computer type machinery?

I got the resin item in the picture below about 5 years ago in an eBay lot of computer related items (main frames, consoles etc.)  that were made by Scotia Grendel and Armorcast.  However I can't find this one in the Scotia Grendel, Armorcast or Ainsty catalogue.  It is about 1 inch long and Kkind of looks like it could be a  hard drive or a memory bank, any ideas what it is or who made it?

?