hillbill,
The only one they list with double triggers is the Double Wing SxS and since you said an O/U, I didn't mention that one.
I can't remember ever seeing an O/U with double triggers, but I have heard of them in the past.
The book says Hialeah, Fl and previously manufactured in Jacksonville, Arkansas.
It also says that all Universal shotguns were discontinued after 1982. It also says that it was started in 1982, so unless there's a misprint in the book, it looks like they only made them for one year.
With respect to the double triggers, yes you can still get them to this day on various makes of SxS shotguns...I was raised shooting a SxS with double triggers and always liked it for instant choke selection. I've found with single selective triggers, I have to fool around with the selector switch too long to change barrels and by that time, the bird is WAAAY out there.