Antique portrait miniature painting CHILD

Beautiful antique portrait miniature of a young girl on ivory. Measures 7.25 cm wide x 9.75 cm height in original brass frame with gold leaf.The glass covering the portrait is slightly loose and may need some cleaning on the inside. The portrait is signed and dated I cant make out who signed it and looks to be dated 66'. On the extreme left of the painting is a crack from the top to the bottom,it does not interrupt the portrait itself but does divide the signature from the portrait.May be some slight fading at the bottom left side. Disclaimer ***This item contains less than 5% ivory harvested pre 1900***. Thanks for looking and happy bidding! If you have any questions feel free to ask.