Here is a mourning piece that is a little different - interesting "bar" style brooch, carved black jet mount - central compartment surrounded by silver mount - glass on top - braided dark hair beneath. No mark, old style "c" clasp on reverse. There looks like a very small piece of fuzz or lint underneath one side of hair compartment - I'll leave that to you to remove. Measures a bit over 2 inches wide at widest point, 3/4 inches tall. Purchased in England.