Dear Tver, hello, thank you for correction, appreciated.
The other one (I suppose that is critical to provide this data to identify the first set) is Minerve marked with this specific hallmark
(please have a look at the pics) and I presume that is Eugène Ulysse Délébois
Might it be one period of production (both sets)? Might it be the same silversmith (Délébois) or any other options (for ex. the cups and plates are made by others but Délébois has just hallmarked some of the items) ? I guess these sets could not be made early than 1827 but later than 1845-45 years ? or?
support and help appreciated :)