The armour is original from Churburg. You're actually inside Churburg when you're panning around. This fella it appears is doing something a bit like what Peter Johnson does when documenting historical blades, and the square thing he runs along the arm opening of the breast plate and the jots down stuff on his drawing is a micrometer ( the square layout allows you to measure deep into larger surface areas ). It looks like he's doing the documentation at Churburg.