On the subject of the British Interplanetary Society, just found
a new video on YouTube (about six and a half minutes long) on the OTL BIS Moon Suit. As noted in the video, the suit they made would have been the Mark I version, while a BIS suit that would have walked on the Moon (in this timeline or in a more realistic alternate history) would have been several redesigns later. Still, this is the Mark I design which the BIS started from in the A More Scientific Golden Age timeline, and the version that will be used (the Mark VII*) should look somewhat similar.
Thoughts?