I have a set of this pattern, from family in Croatia (then Yugoslavia) before WWII. I'm confident it is the same pattern. On ours, the Dianakopf is in a 5-lobed flower-type shape, and there is an A for Vienna manufacture, and what we think is a 3 for silver content or 800. On most pieces, the second mark is an oak leaf with acorn, which was the mark of Viennese silversmith Vincenz Carl Dub. There are a couple pieces with VCD inside a rectangle, which was another mark they used.