Nuclear Submarine Glass

I saw what I thought was a large citrine in a jewlery store, but I was told by the store owner that it was not a citrine, but thick glass from 1950s-60s submarines that were carved into citrine like shapes. Does anyone know anything about this?

 

Well I don't know from Nuclear submarines ROFLMAO ..

but what you probably saw was an Antique Glass Deck Prism

https://www.collectorsweekly.com/stories/196444-antique-glass-deck-prism

or even more shapes

http://deckprisms.com/

 

I know what citrine color is. What's a citrine like shape? Guessing blooey tells you true.

 

"gem like"

 

He showed me this big slab of yellowish glass, didn't look like a prism. Maybe I have a pic somewhere...

 

Lead glass used for "window" on hatches leading to the reactor room.It was sold at one time for faceting.I think I have a small piece in a box somewhere.https://www.worthpoint.com/worthopedia/nuclear-submarine-reactor-window-1940746493

 

Poorly cut doesn't show the real brilliance as the linked photo.

 

Cool!