This is a Shachihata brand vermilion ink pad. The case is made of dark brown plastic and has a diameter of approximately 5cm. It has been used a few times and then stored in a drawer. There are three small stains on the ink surface, as if touched by a black ballpoint pen (see photo 1), but this does not affect its use. The slight white pattern on the lid surface was probably there from the beginning, but the details are unknown. As shown in the last photo, the back of the pad says "Fast-drying Shachihata Vermilion Ink No. 40" and "Refill Ink OQN 28". Please note that this item is stored by a private individual and is sold as-is, with no returns accepted. I am sorry, but I cannot offer a discount.