1847 Gothic Crown

I believe that 1847 was the first year in which the Gothic Crown was issued. The generally accepted translation of 'Decus et Tutamen' is 'An Ornament and a Safeguard'. Followed by anno regni - the regnal year of issue.
A great pity that it was damaged by the attachment as it is a very fine coin.

If it had to be damaged, at least it was on the obverse.
For me, that reverse is absolutely stunning, and your example with the rich dark oxidation is beautiful.

A fine-tip soldering iron and a solder sucker would probably clean that up nicely, btw. Still a silver spot, most likely, but readable at least.

I would definitely get the attachment removed. It will sell for a pretty penny in any case, but it would be more desirable without the attachment. Damage is inevitable but if you take it to a decent jewelers, they should be able to limit this...

Hard to put an estimate on damaged coins but I've seen similar 'damaged' gothic florins sell for around £300-500

Thanks Beeston1990 for this advice. The thing is, I'm not interested in selling this coin: it's worth more to be as simply something that's been in my family for generations (I have assumed my grandmother acquired it from her mother, although the brooch (if that is what it was) does not appear in any photographs.)

It can be seen that on the rim opposite the attachment is further damage - discolouration and minor chips to the rim. Presumably this damage was caused at the same time.

Further to your advice I think I will see to having the attachment removed, if only for the aesthetic improvement. I don't know if a High Street jeweller would be the best place to go, and would welcome any suggestions. Thanks.

MoeTate - thanks for this suggestion. I have already taken on board your earlier advice about a fine-tip soldering iron and a solder sucker (although I confess I'm not familiar with these terms! I shall pass your thoughts to the jeweller.)

Thanks for that. We live and learn! I am still concerned that a jeweller might ruin the beautiful patina. It would be prudent, I think and on reflection, to leave the coin as it is (at least for now).

Thanks again to all who gave advice. Much appreciated.