Oak Hall Chair W/Tall Bentwood Back???

This is an oak chair with a saddle seat, very tall bentwood back, and a harp design at the bottom front. I would like any information regarding period/style plus country of origin. It seems like a mix of different styles to me. It is 41" from floor to top of chair. Seat is 17" at widest point, and 17" from the floor. I bought it at an estate sale in the NW, seller did not have any history to pass along.