That is absolutely beautiful! Just my humble opinion, the Tracker/Viscount series are the best-styled rifles Webley ever made - the long barrel being the more elegant of the two - and that is a stunning example.
I actually owned a .22 walnut Viscount briefly, and it is one of the rifles I most regret selling. I also parted with a third-series Tracker which I would gladly trade for the "Barnett Spitfire" (Americanized early Tracker) I now have.
I too have always been mystified these guns were not more popular. Yeah they don't push the power limit, but in return they are slender, light, and well-balanced. And I don't even mind the trigger...a well broken-in and lubed Vulcan-family trigger is not at all inappropriate for a sporting rifle (yeah I know I'm a team of one on that point, LOL).