www.925-1000.com

Good day.
Please let me know if everything is fine with the hallmarks?

The first hallmark is from Lviv 179[7?]. The second one is an assay mark of 1809-1810 contribution. The last one is a silversmith's mark SD (?) from Lviv ("L"). However, I have some doubts if this plate is from this period. Lot of similar items were made in late 19th/early 20th century.

Hi,
Notstempel-frei mark was indiscriminately used by Hanau silversmiths, e.g. Neresheimer (mark npr)

Here:

https://www.925-1000.com/Fgerman_hanau_marks_01.html


The style of the dish is typical for Hanau.

I opt for Hanau, late 19th century unless proven otherwise with solid reference.
Regards