New 'three pound twelve' coin, spots on side? Advice please

[evansuk2000 5]

Hi all, recently posted about a collection of 3 coins I have bought, they arrived today, and the brass one has quite a large black spot on the outer rim that I'm worrying about, and also quite a deep grove...

I'm hoping it isn't vertigris? Could someone tell me if it's anything to be concerned about, or I should still be happy?! Also what are the black marks on the front?

Thanks!

Will add pics in a moment.

[evansuk2000 5]

https://imageshack.com/i/ey576ef4j

Should work?

Please any feedback would be great.

[evansuk2000 5]

If you click past the other pics (Stamps!) you will get to the other coin pics...3 in total.

[evansuk2000 5]

Okay, images here:

[Peckris 579]

https://imageshack.com/i/ey576ef4j

Should work?

Please any feedback would be great.

The link took me straight there (heaps better than the awful 'bucket ).

It might be 'treated verdigris' which would look black, or else it's straightforward spotting (you often see black marks on brass threepences). As for the groove, you'll have to live with that I'm afraid. Still, the BoE dollar makes up for any shortfall in the other two

[evansuk2000 5]

It's kind of course when I touch it, I'm hoping it's just spotting then? Will this take much value from the piece? Would you still keep it? I'm not too bothered by the groove, just the black spot (I think it's black...I'm quite colourblind)

The dollar is lovely.

And with my worry mind...any chance if it is the dreaded vertigris...it would spread to other coins such as the dollar!

[Peckris 579]

It's kind of course when I touch it, I'm hoping it's just spotting then? Will this take much value from the piece? Would you still keep it? I'm not too bothered by the groove, just the black spot (I think it's black...I'm quite colourblind)

The dollar is lovely.

And with my worry mind...any chance if it is the dreaded vertigris...it would spread to other coins such as the dollar!

Verdigris won't spread to silver - it's a copper/bronze disease. However, if you're worried, keep it separately from other coins, preferably in a capsule or flip. I couldn't comment on the value as it's not my area at all, but you should expect some depreciation.

[bagerap 706]

The black looks to be treated verdigris, so I tweaked your picture a bit:

I think there is a residue of verd as shown, so take precautions. Good news is that it's still a £40 weight. More on a good day with a following wind.

[evansuk2000 5]

Thanks both, and it shouldn't spread to other coins...although it has now been placed in isolation! But I had handled the 1804 dollar after etc!

[Peckris 579]

Thanks both, and it shouldn't spread to other coins...although it has now been placed in isolation! But I had handled the 1804 dollar after etc!

No problem - it won't spread to silver, as I said above.