Looking for more information about these Viennese hallmarks

[rsidney]

Here is the best picture I can make at this time for a set of hallmarks from a tea service. To the best of my knowledge, this set was made by my great-grandfather, which is how I know it's Viennese, even though I can't make out the letters on the Diana. If anyone has any additional information about the maker's mark, I would appreciate it.

[jewelcat]

Hello rsidney,
it has been quite a long time ago as you asked this question. I can only
deliver a part of the answear.
I presume the flowershaped Mark contains the head?
An A on the left side of the Head stand for Vienna on the right side
can stand a 1 symbolising the quality of silver. Second possibility is same shape of the mark but a 3 on the left side of the Head and an A on the right side. These marks were used by Austria- Hungary from 1872
until 1922.
An earlier mark with the same shape was used by Austria-Hungary
from 1867 until 1872 . With no letters but an 1 on the right side of the head and another version with a 3 on the left side of the head.

regards jewelcat