Cleaning deposits on silver

[Numerianus]

This Otacilia is not bad though the surface is a bit porous. The trouble is with
ugly dark deposits. What is your opinion, can one remove them and by what means?

[Johnny]

I.....er....hummm.............   can't tell,  There are no pictures attached


   you're having one of those days too eh ?

[awl]

I would put lemon juice on a paper towel and dab the area of concern with it until the black stuff comes off.

[Numerianus]

It happens that this coin is, in fact, fourree...

[Johnny]

the only thing I would use is tooth pick  or a small pin vise under maginfication

I'm assuming the fouree are the same as silvered so lemon juice would be out, 

Just mechanical cleaning


EDITED>>>>>>>>>>>  your coin looks great as is too...