Here is Rodin's 'The Thinker' Replica Signed and Numbered Ceramic? 12"H 7-Pounds. Looks to be signed by a name that begins with K.  It is also numbered which is shown in the photos.  I was unable to find more information.  This piece is in fair condition.  There are chips to the glaze, but it seem to add to the patina.  Look at the photos up-close to make your own judgement.  I believe it to be some type of ceramic.  It has a hallow space inside.  I added a new felt bottom to protect surfaces.  I will pack well and ship in a 10x10x16 box with lots of bubble wrap.