circa 1890 side chair with horse hair stuffed seat and small upholstered back

I purchased this chair and three others in 1980 fom an antique dealer.  She told me at that time they were from 1890.  I have tried to find more information regarding them but have been unable .  The pictures reflects the discription of this one....I took it apart trying to find the manufacturer but there were no markings.  The seat has horsehair stuffing,with a velvet upholstery. As seen in the photos, the strapping under the seat appears to have been repaired with new strapping.  I would like more information ie. upholsery used for this type and era of these chairs, as I want to have a professional antique upholsterer refinish them.  I am interested the value after this has been done.