Sterling Silver Horn mark or Candy Bowl

[naughtybadger]

Hi. This one has me stumped and research has led me nowhere. As you can see the mark, is some sort of horn (gun horn) or possibly a bugle. The piece is a small bowl or candy dish. I have seen a few images of this mark on silverplate marked items but have not seen a maker tied to it and this is the first I've seen marked Sterling. Any ideas?




Regards & thanks, John