galaxy flyer,
If you can ever get your hands on a copy of "The Concorde Story" by Christopher Orlebar, there is a nice photo of a Concorde pilot with an oxygen mask (page 111 in my copy).
I quote:
"The flight deck crew are equipped with 'quick don' oxygen masks capable of supplying 100% oxygen under pressure. The donning of oxygen masks and the emergency descent is practised regularly in the flight simulator".
They look quite impressive too, nothing like the little cups on a plastic tube they show you during the safety briefing in a typical airliner....
Sorry, I don't have a flatbed scanner to show the photo (I'm sure Christopher wouldn't mind).
CJ