This is a very nice iron tsuba of the Kamakura Bori school. The name of this school refers to the style of carving rather than the epoch of creation. In fact, this tsuba probably dates to the latter part of the Muromachi Era of the 16th century. It is a large tsuba measuring 9.2 cm by 9.1 cm or 3 5/8 inches by 3 9/16 inches. It has two small mushrooms carved in sukashi on the lower left or lower right of the tsuba depending on whether you are looking at the obverse or the reverse side of the tsuba The balance of the tsuba is delicately carved with a series or fan-like panels containing a variety of designs such as plants, flowers, a bridge, and the crescent moon. There are traces of old lacquer remaining here and there. The overall condition of the tsuba is excellent. You will note that there are no hitsu ana carved into the thin iron plate thus preserving this tsuba in its original design format. This is a very desirable feature. This tsuba comes in a custom fitted wooden box. It also has NBTHK Hozon papers attesting to its condition and quality.