Hi again wkost
Looking at the hallmark again, I think I have found the maker. It seems to be Ludolph Thiesen, citizenship in Åbenrå/Aabenraa/Apenrade 1729-1760's.
Bedsted is just some 20 km due west of Åbenrå, so all in all the engraving and the hallmark seems to match each other nicely.