These are mid century modern teak coasters from Denmark. Beautiful. Stamped on the bottom. They are vintage, and unfortunately, one coaster has a chip out of the side (see photo). The wood is beautiful and richly grained. They would look great in your MCM room. The ones at the bottom of the pile can be tough to get out of the holder, just letting you know. These are vintage, at least 60 years old and in good condition (except for the one). They stand about 4 inches high.