Have had one for some time Got it from my grandma Grace she also gave me a small very well sanded and used piece of soft pine to put under the seam. It has served at least 3 generations in my family. Is this where the saying -If it don't fit get a bigger hammer- came from? LOL My hammer is made of wood and the head is slightly rounded don't know if it is rounded from use or if it was made that way.