I have what I believe are pre-1886 German/Austrian spoons.
My initial research indicates the following:
12 = 750/1000 fineness
Rampant lion within an oval? = Darmstadt/Hesse?
The rampant lion within an oval was supposedly used in Darmstadt as early as the 1700s, however the engraving style looks like it is from a newer period. Perhaps the spoons were crafted in the 1700′s and the engraving added in the 1800′s?
Thanks for any feedback you can provide!