Welcome to the forum. I used to shoot Winchester Model 52's (along with Remington Model 513Ts) on 50-foot indoor small bore ranges back in the 1950s. I had a lot of fun on small bore ranges. Anyway, that setup that you inherited from your grandfather is magnificent! The entire outfit with the box, the scope and other accessories is absolutely one of the best that I've ever seen. I hope that you're inquiring for insurance purposes. If I had something like that I'd make sure that it stayed in the family. As for value...you came to the right place. I'm sure that Popeye or one of the other guys can give you a good estimate.