Antique 9ct Rose Gold B&F Heart Locket

This is a beautiful antique 9ct Rose Gold back and front Heart Locket.
The front is engraved.
Opens and shuts perfectly.
It is in excellent condition without repairs.
Dated: c1910-20
Stamped: BK & FT 9CT
Weight: 4.6 grams
Measurements: 22mm X 20mm approx.