It isn't a coin. It is, as the note describes, a "box". It is hollow, with enough room for a single silver-dollar-sized coin inside it; we can't tell from the pics if there's still a thaler in there. If you can't figure out how to open it, try taking it to a jeweller or antiques dealer.
Here's another old forum thread with a thaler box, this one made in the design of an actual thaler. You can see from the pics of it opened up that it isn't actually made out of a coin, as the inside of the box shows a mirror-image-incuse design.
As for the value of your piece, it's a piece of jewellery, not a coin (though it is certainly numismatic-related), so you'd probably get better information from a jewellery and antiques website.
Here's another old forum thread with a thaler box, this one made in the design of an actual thaler. You can see from the pics of it opened up that it isn't actually made out of a coin, as the inside of the box shows a mirror-image-incuse design.
As for the value of your piece, it's a piece of jewellery, not a coin (though it is certainly numismatic-related), so you'd probably get better information from a jewellery and antiques website.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis






















