Hi,
СЧ8 stands for the maker
«Северная чернь»(«Severnaya chern'»), translated as ``Northern niello``, founded in 1933, although there was much older niello tradition in
Veliky Ustyug (Великий Устюг), dating back to 17th century.
Number 8 after СЧ is date code for 1968.
The mark on the right is state control mark for 875 silver standard.
Next time embed your images; few people will open links.
Regards
