This is a Yokkaichi Banko-yaki coffee kyusu (teapot). I received it as a gift, but I've never used it and it's been stored in the cupboard. There is no box or instruction manual. You can find instructions on how to use it by searching online. - Color: Black-Blue - Bottom Mark: Yokkaichi Banko-yaki - Shape: Kyusu (teapot) shape - Spout: Wide mouth Thank you for looking.