We have an antique wood square finial.  It measures about 3 1/4" square at the base x 3" in H.  It has the original finish which is quite worn.  There is a crack in the base on one side but it is still solid.  Please note that the bottom has 4 old rusty nails sticking out from it.  I would consider it in fair condition.

Wood Square Finial Antique Item