Nice piece indeed John!
Noticed only proofed for the 1oz loads, surely you should be able to do a decent field load in this one, 2 1/2"case?
I think you're right in both cases, serial No ends with a 9 & The Address looks like St James to me!
Might have to get the engraving touched up later down the track.
Hope you get to use it on everything including a few rabbits.
Getting shot here in Oz.........best of luck!