I haven't seen any mention of a rifle attributed to Blunt in the 12 or 15 years I've been scouring auction catalogues, so maybe his son (or a friend) still has it. But you never know, it may be in the hands of someone who doesn't know the history. Hemingway's G&H Springfield has been missing since it was stolen from his son in the 70's and then there's the .505 Gibbs that no one seems to have seen (also a G&H).

Nice looking .275 by the way!