British Army Of The Rhine BAOR RUGBY Trophy 1961 Runner up

Condition is as seen, there is some verdigris/marks etc and some black marks on the shield,
I have NOT tried to clean this in any way, I'm unsure what the black is but does not want to come off
(Just tried with a finger nail, Im not sure if it is removable!)
It stands (Approx) 3" tall and is fairly heavy (Solid) at about 180g