It was a great question!
The VR barrel was only on about 40% of the guns.
They also came in matted top and plain. Not sure I've seen a solid rib, but they could be out there.
You will enjoy it. The wood is a light English usually on that vintage.
I had this one Briley choked since the 'full' was a bit much. It had the wood redone by Garvin's, and the wood looks like new. The blue is about 95%... It gets a few outings a year.
Function with mine is 100% with Fiocchi dove loads.
Hope you enjoy your new toy.