My grandfather (Bill Henery, seated nearest in G-HUEY) designed the Anticoustic/Nosonic headsets. They donated some for G-HUEY project in the 80s, and worked on the helmet wiring as well I believe. My father and I got talking about this over Christmas and he dug out these pictures from his archives and we scanned them in. I am also now the proud owner of a cross section of one of its original blades mounted on a wooden plinth; given to my grandfather as a token of thanks for the donation at the time.
Hope this is of interest to anyone who worked on / knew her.
Best regards
Lawrence.