Postby JayT » Sun Feb 07, 2021 11:29 am
Hello
You have the crab silver standard mark for smalls. The butterfly is a guarantee mark for smalls used in the First Division from 1819-1838. There should be an identification of the tax bureau in the middle of the butterfly’s wings, but your image is too blurry on my monitor to make it out. If you could sharpen the image, we could see the symbol for the town where your item was made. The third mark in a lozenge-shaped reserve is the maker. Unfortunately, I don’t have references for Northern France.
Therefore all required marks are in place. You know the item was made of at least 800 standard silver in Northern France from 1819-1838. Who made your item remains to discover.
Hope this helps a bit.
See Tardy p. 193-194 for the guarantee mark.