Vintage 1998 Herman Miller Aeron Chair – Size B (2 dots). Great overall vintage condition. Fully working order – no functional or structural issues/defects. One issue to note is that the button/tab for the seat height adjustment lever is chipped off and missing – see photo #10-12 (circled in purple). The seat height adjustment itself still works fine – just the tab/button is chipped off. Clean cosmetics overall with some normal surface wear in areas. Has some minor wear on the gray thread in areas on the seat/back in photo #19/20. No damage to the black mesh – just some wear on the gray thread. Please review all detailed photos!