Japanese natural whetstones Nakayama Karasu Koppa NKK1
Small Nakayama Karasu Koppa with Kyoto Natural Whetstone Association stamped on one side and one end. One corner is slightly imperfect and the rest are square. Karasu layer is about few millimeter on the top. Very hard finishing stone for razor. Best to use with Nagura.
Size: 149mm(L) x 80mm(W) x 25mm(H)