You can see "Herman Miller" written on the bottom of the chair along with a Summit "S" stamp. This chair was likely made between 1959 and 1989. It's in excellent condition, with the Wire Base legs untouched. Two Glides on the back legs are missing, but they should be replaceable with a little searching. There are no noticeable scratches, bends, or cracks anywhere. It's sturdy and in great shape. Thank you for your interest.