Postby Qrt.S » Wed Jan 13, 2016 11:36 am
It is Norwegian. The maker is Bertel Olsen born around 1788 in Bergen and dead 16.6.1863 in Stockholm. He was active in Oslo around 1822-1849. He was appointed as alderman for Oslo Gullsmedslaug 1832-36. Now everything is in place. Town mark for Oslo, guardein C. Clausen (not H.Clausen) 1823-1846, zodiac mark for Pisces (H) 18.2-20.3 and two maker's marks for B. Olsen.
As AG2012 mentioned the zodiac marks were used 1766-1820. As from 1821 onward (two) figures were used as year marks, but zodiac marks have been found on objects after 1821.