portrait

I need help is possible identification of the sitter (European? American?) and the signature is unclear to me. Can anyone recognize this woman artist? Oil on canvas portrait of a Victorian lady Signed & dated 'Clara Urnika Pinx' '1864' mid right. Size 43 x 31" overall 50 x 38" in a...

This is an antique necklace that has been passed down through the generations in my family but I don't know anything about it. I don't have it with me at the moment, so can't take pictures of the back of it right now.

Fount this rock while detecting the 38585 area, I'm wanting info to identify this interesting piece, I fount it at the bottom of a flowing creek. One side kinda reminds me of the portrait of President Washington that you will see on the face of a Dollar Bill. Thanks guys.