This is a vintage fiberglass chair, not marked but probably a Herman Miller Eames shell dining table chair. It has been painted - badly, with black gloss paint. It was originally white/off white. I’m not sure if the legs are original or if they have been modified. I intend to dismantle it for shipping. I’m told this paint can be removed if you are adventurous with oven cleaner or a paint stripper. A few chips around the rim, typical of this kind of chair Vintage Fiberglass Shell Chair - As Is Unmarked X Base