T552. I believe this set is of shibuichi (an alloy of copper and silver) but it may be shakudo (copper and gold) or something else similar. Whatever the material, the work is lovely They are 2.8 and 2.9 cm in length. Often shakudo menuki of oxen have golds and silver highlights at the eyes and/or hooves. These have none and they don’t need any; they are fine as is. $225.