Solje Cross - Need information on mark below makers mark.

[slgwb]

Hello, I have a Solje Cross that is made by Brodrene Lohne (it has his "Lo" mark). Below the makers mark there is another mark stamped "Nr104" Where can I find out what this mark means? Thank you for your help.

[many45]

Hi,
You are quite right. This cross is made by Brødrene Lohne, Norway. 830 S means 830/ 1000 silver. Nr 104 means number 104 and is a product or type number.
Best regards,
many45