This is Nick Dudman in 1981. He holds a small maquette of the Bib Fortuna design as he models the prosthetics in clay on a plaster head of Michael Carter. At this stage you will note that the forehead has not yet been detatched from the cranium.
Mike sits patiently as Nick applies the pieces. Well... actually... no! This is clearly a staged shot for publicity purposes. Note how the bladders are conveniently visible on Mike's shoulders and Nick would never glue down the forhead before they, and the cranium were firmly fixed in place.
That's more like it. The prosthetics attached, Nick applies the color. From the look on Mike's face I think he's wishing he'd used the bathroom before he sat down!