Hi, all of You Double Rilfle man,
Thanks a lot for giving answers.

Gibbs remailed ( for the first time ;-))
The Rifle is build in 1902, wholly made by Webley and Scott and the the name done by Gibbs.This is sure because of the B before the serieal number.
The metal working of the " selous plates " is really very nice and exactly.
There are no further informations coming from Gibbs.

CONCERNING TO THE MONO BLOCK

I have used my operation magnification glasses 4 times factor and will try to write it down. It seems, a picture wont give any more information

right barrel

first line

nf then a proofmark than ( probably overstemped 480 ) with cordite75 - 500 max

second line

three proof marks than overstemped 470 the numbers under are even with manification not to recognize ( probably with a lot of fantasy 450 )

last line

70 GRS cordite

left barrel the same

so naturaly i can make pictures, but no hope to see it better.

After all : thanks a lot and allways a good gun in your hands

by the way : in the new DDR.2 formely called Bundesrepublik Deutschland, the ochlocratic politions try to keep all the weapons away from owners. And try to destroy our hunting pleasure.

Thats no further my country.

Its a pitty !

Wolfgang