This movie really puzzles me: was it just ignorance on the part of the filmmakers? Did they believe their audience was ignorant? Or did Hammer assume that as long as they paraded a few scantily clad starlets no one would care? Whatever, this is one of the worst movies that Hammer managed to produce. And no there were no Viking queens in Roman Britain.
Anyway part way through this mess a very unlikely-looking Nubian slave girl (Nita Lorraine) gives somebody a massage. And yes that is a bodypaint job under the metalwork. Clearly, after a lot of thought and consideration of potential actresses for the role, the filmmakers were unable to find a black actress in mid-1960s Britain capable of performing such a demanding role.
Charle E Parker was the makeup supervisor.