That's a beautiful gun!
And 400/350 is a great caliber in the US or Europe.
A few weeks back, I have seen an ad for another WR A&D boxlock with inspection plate (a shotgun). I just can't remember where.
This action looks just like a droplock. Except it's not.
I wonder why...
The carved fences are wonderful.
I wonder what Dupont powder was this proved for. Any guess?
Another interesting fact is that the barrels are just a tad wider than the action. Quite unusual.
How are the bores on that beauty?
Congrats!
WC