Having a patent and enforcing it are two different things, especially if the idea is copied in a different country (the Lillicrap hone is a good example of good design patenting, as it was registered in at least 7 countries). Also subtle differences may make a "copy" possible. The gilding and the colour point to a possible Bohemian origin to me, so I'm with Wayne. Late 19th, early 20th century. What colour does it glow under a UV light?