It was proofed between 1910 and 1924.

At the time of proof, the barrels weighed 1.334 kgs or 2.94lbs. The chamber measured 65mm (2.5") by 20.5mm (.807"). The bore was 18.3 (.720").

It is nitro proofed.

It appears to have been resubmitted for proof in 1926.

I do not know who LJ was registered to.

Pete