posting this for someone else as there membership hasnt been approved by the mods yet so here goes ........he says ...the stamp to the right of the 2nd pic says "made in ModerN England"
and the edge on the stamp on the top of the 2nd pic says "ModerN"

he also wants to know what calibre it is and how to load it as it seems smaller than 177

i thought diana model 1 ....... cheers all