I'm trying to identify my Scandinavian solje broche. It has marks similar to the early (1888 - 1925) David Andersen's maker's marks from your registry
https://www.925-1000.com/david-andersen_marks.html


What makes me doubt is that letter S next to 830 is missing, and that two simbols are hammered a kind of chaotically, not in straight line.
Can it be due to the lack of space on the broche (the circle where the marks are hammered is around 1 cm in diameter and is not flat), or does it show that the marks are not authentic?
Many thanks in advance!