With some ancestry in the Channel Islands, I was excited to find out they had their own silversmiths, marking their wares with unique marks.
This spoon was made by the last of the Jersey Silversmiths to make spoons. It was made by Jean Le Gallais, around 1850. As you can see the hallmarks don't follow the standard English hallmarking system. In this case there is the makers mark, (JLG), a crown and the letter J (for Jersey).
Another really cool thing about Channel Islands spoons is their use of the double drop (I've also seen it called a skeleton drop) heel to join the stem to the bowl of the spoon. Although this can be found in early English spoons, it died out reasonably quickly there. In the Jersey however, the silversmiths continued to use this style up through the nineteenth century. It was hard to take a photograph of, but you can see it in the photo, the little pitchfork shape.