www.925-1000.com

It’s a button:

https://imgur.com/a/7DqYqAd

Any ideas? I think 1600s/1700s, maybe German? A city mark?

Thank you!

Hi,

Welcome to the Forum.

Please embed your images as very few members will click on links.

https://postimages.org (choose 'Share', then copy the 'Hotlink for forums' code) is recommended. Do not use Photobucket or Dropbox.

Trev.

Looks a bit like Hamburg but the hallmark is rather distorted and the photo isn't the best either. You should take a better photo and see if there are any other marks like maker's. And a photo of the whole item would help to determine the age.

Yes, it is Hamburg with letter T (1811-1828)
Is there a makers mark?