Hi need some help identifying a hallmark a hallmark, was told it's from Russia but couldn't find anything similar on the page. If I am not mistaken the hallmark reads "MM4 MET 100PT", thanks in advance.
Your tea glass holder or "podstakannik" in Russian is not Russian but Soviet made (the difference is enormous!). It is not either silver but some alloy as the mark MET (metal) indicates. The alloy is probably German silver also called alpacka and many other names (copper, zinc and nickel). MM4 stands for "Promatrel Mstera Moskva". The holder is made in 1954. Unfortunately I don't know what 100PT means.