Lincoln style rocking chair

I have a Lincoln Style mahogny rocking chair with carved relief on the top seat back rail and bottom seat rail of the chair.  The arms and back of the chair are upholstered and the arms have very ornate carved curls in them.  I believe it was made sometime around the 1870's but I am not sure. 

I am interested in knowing what the value is for this chair and if you agree with the approximate date of manufacture.  Do you have any idea where it may have been made?  There are no manufacturer stamps, numbers or carved names in the frame.

I could not add anymore pictures because all of them are just over 2 MB each.  If you want I can send more by email.

Thank you for your help.