Finally got around to getting more pictures of the markings
Under barrel.

RS in a oval , script letters E.L.B . Side of barrel flat has the Crown ,Crown N proof also bore size 7,8mm

Proof load markings, 2,75 g G.B.P. S.G.

Two sets of serial numbers . Thes numbers are on most parts of the action & Barrel

Markings behind the recoil lug.
from the top, just under the lug..
R Z R -
script letters, E B Looks like a 'E'?
J V 6
N 4 (These vertical numbers are Serial numbers)
N f 5
Y Y
O C (Or G) B

Some letters are stamped side ways.

Sorry for the crappy pictures.