Mystery Artist Signed Early 19th Century Oil Painting on Panel

Mystery Artist Signed Early 19th Century oil painting on panel.
Mystery Artist Signed Early 19th Century oil painting on panel. An illegible signature to lower right. Well executed painting depicting a young woman in contemplation
Art: 10 1/2 x 8 in. (26.7 x 20.3 cm.), Frame: 16.8 x 14.6 in. (42.7 x 37.1 cm.)
Condition Report: good but a nice cleaning would be excellent and might reveal what is written in the lower right. Lose to Frame. Missing frame pieces