Copeland Hall Dining Table c. 1873

Found this table at the thrift store.  It is missing the four leaves, but has a certificate glued underneath "Copeland Hall" Giant Frame Extension Table patented 1873.  I'm looking for a value on the table.  It is in fairly good shape for its age.  Nothing appears to have ever been broken, except for one of the dropleaf supports.  The top has quite a few nicks and scratches, but the wood is still beautiful, and the legs are ornate scroll carved.  All the hardware appears original.  The support hardware on the extension frame is stamped Sep 09 18.  The legs are sturdy and still have th original steel casters.  It is a pretty impressive piece.