I love old wooden spinning tops just as a form, and this is an especially lovely one, as pure a form as can be, with a great patina to boot. Heavy and smooth, I'd probably put it on the desk to use it as a paperweight, picking it up occasionally to give it a twirl around. (I believe there was likely once a separate winding device that attached to wind it up and properly get it spinning.) 

5" tall x 2 3/4" diameter at widest. Excellent overall condition, with just the right amount of wear and scuffs.