We found this on the decking in our back garden in St. Peter's, Worcester while putting away the Gazebo for the winter. I have no idea how it got there or how long it has been there. However, having known about Geocaching for quite a few years, I recognised it for what it is. It is still in quite good shape, the chain is a bit rusty now, but hanging together OK.
Here is a picture of it now . . . https://photos.app.goo.gl/ZVm1k9aEoA4sga1dA
I see it wants to "Visit Astronomical Places" so I have an idea of where to take it next; it's time it continued its journey!
Good luck TETA09!