Antique school master's desk

Got this from my mother.  Good chance it came from the south as she lived in NC many years.  Not sure age.  Believe this to be pine(?) but it has been stained a reddish finish.  Some of original hardware, such as the hinges seem to have been replaced and the finish on top shows wear and watermarks.  I'd appreciate an idea of value.  Since we are downsizing, I no longer have room for it and need to sell.