These are a kama-sue (pot stand) and a sugi-kiji kama-shiki (cedar wood pot mat) used in the mizuyaya (preparation room) of a tea ceremony. Both were made by the same artist, but the artist is unknown. Both show signs of use, such as dirt. Both are different from the kama-shiki and kama-sue sold in ordinary places, with thick and magnificent wood. Both come in paper boxes with the artist's name written on them. The kama-shiki is 8mm thick.