Looks OK, but there's a lot not mentioned in the listing.
You need to know the bore measurements, bbl wall thicknesses, and chamber lengths. Also, any dents, dings, pitting or bulges in the bbls?
I would check the length of the choke cones, too. The bbls on English guns tend to be 25", 26", 28", or 30". While some makers did offer 29" bbls (like Woodward and Boss), they're not common. Check to be sure those are not cut.
If the gun is in it's original case, take a look at the bbl compartment and see if it has been adjusted. The bbls should fit snugly at both ends, with no gaps, and they should go to the edges of the case without a spacer.
Bores size and chamber lengths will tell you if it is proof, or out of proof. And you don't want bbl walls below .024".
Also, you need to know if it is tight and on the face and if the ejectors work and are timed right. Check the trigger pulls, too.
Where in the US are you? I would never buy a nice gun without having a qualified 'smith inspect it first. Tell us where you are and we can recommend one for you.
Good luck,
OWD
