I have a quick crystal quesiton for you guys. I have two Viceroys now and they have two different crystals. The first has the crystal that I see in the images on OTD (below), it has a bit of a sharp "edge" to it. My other Viceroy has more of a rounded, dome style crystal. It came from the original owner who said that he never replaced it (of course he may not remember correctly after all these years).

So did Heuer use only one style of crystal, and are all plastic crystal Autavias the same?