https://www.rubylane.com/blog/categories/what-s-this/royal-vienna-and-the-beehive-mark-real-or-fake/

What is the WMF stamped on ?? The mark above the numbers is what most call the beehive mark !! It started as a shield mark for the Royal Manufactory in Vienna !! Over the years many have copied it in some form !! The link above will give you some information about the mark !! Since yours appears to be a raised mark and was made in the mold,,it is not the Royal Vienna mark,, theirs would be a blue mark hand applied under the glaze !! There are many others that have used this mark !! I did not find any that used this made in the mold method !!
WMF,,Wurttembergische Metallwaren Fabrik,, was a German silverplate mfr.!! They may have made the metal parts for this set !!