Set of 4 bamboo armchairs from the 80s

Set of 4 Lemke bamboo armchairs from the 1980s. Bamboo backrest and frame. Some stains on the seats (see photos). Good seat. Light signs of wear related to time and use. Dimensions: seat height: 46 cm; total height: 1.06 m; total width: 51 cm; seat depth: 45 cm; total depth: 60 cm.