The one mark I can see is a workshop in Trondheim, Norway called "Kunst og Metallindustri" estab 1918 and still in work.
It is P and S - Paul Skarsten - name of the first owner.
Tosten
Hi
Your bracelet is made by a workshop in Oslo, Norway called Bull Jansen & Prydz AS. They worked in the beginning of 1920. Hroar Prydz was one of them.
Regards Tosten
Gustav Gaudernack died in 1914, but the workshop, by his widow worked on until 1938. Yours buttoms could be from the workshop.
In Norway Guttorm Gagnes (1906-1964) was a designer from David-Andersen and he also used as mark GG. His workshop was 1945-1953.
Regards Tosten
Hi Your spoon is in the pattern "Hardanger" and made by Th. Olsens Eftf. in Bergen, and Magnus Aase was one of the owners. The firm has always used his mark. They are still in business and Hardanger is still made. The retailer is Johan Strand in Haugesund working 1894-1926. Regards Tosten
Hello
I am sure that it is right that the wardein is Christen Hoff 1821-1860 and the mark is Rasmus Elias Hansen 1789-1825. His widow went on with the workshop until ca. 1855 and used his mark.
Regards Tosten
Hello again Sorry, but I have no link that you can read more about Thorleif Johnsen. He was born in Oslo 02.10.1891. Education by David Andersen in 1910. Started workshop i Oslo in 1912 and with a shop in 1916. Closed down in 1935 when he died. This is all I know. Regards Tosten
Hello Do you know anything about the spoon? It could be norwegian. The mark is very resemble Christian Holter, in Oslo and Holmestrand in Norway. Working 1849 - 1883. Tosten