Cast glass suncatcher with an embedded cow design. It's 100mm in diameter, and 10mm thick.
It was bought in Denmark, but it may be Swedish - the seller suggested Flygsfors as a possibility. But Swedish glass is not my forte, so I'm clueless.
As a side-note.... photographing suncatchers is *such* a pain - I had to improvise a lightbox utilising an unlikely and precariously balanced stack of cardboard boxes, gauze, a pane of glass, two lamps and four bookends!
The results were pretty swish, though.