Antique Georgian Pin - Portrait Under Glass - Fichu - Lace Pin

Antique Georgian Pin - Portrait Under Glass - Late 18th to Early 19th Century

Very small antique Georgian fichu or lace pin. I believe the image to be a lithograph. The image almost appears silk like. A stippled like image of a woman. The image is under glass, possibly rock crystal. The center of the glass is concave. The setting does not test for gold. Most likely brass or Pinchbeck. Dates to the late 18th century to early 19th century. 

Measurements: 

1 1/16" by 7/8" 

Pin stem extends an extra 3/16" past the pin. 

Condition: 

---The back of the piece has some darkened spots. 

---There is a very tiny chip in the glass.

For more photos and purchasing information:

http://www.ebay.com/itm/331726696854