They are stamped with the national control mark—three crowns in a trefoil (the "kattfot"). This guarantees that the silver purity is at least the traditional 830/1000 or sterling .925. you can do your own research by looking up Swedish hallmarks Swedish makers marks. This is a stunning little coffee spoon/tea in very good condition  the company name that made these spoons in Sweden is in Stockholm called GAB Guldsmedsaktiebolaget the year date stamp is H9 = 1958 and they are 6 to 7grams((No9))
