At first glance, this 1953 atomic swivel chair might seem like just another vintage find. But as I began to disassemble it, one detail stood out: the No-Sag® sinuous springs. Developed by Leggett & Platt, a company founded in Carthage, Missouri, in 1883, No-Sag® springs became a hallmark of quality in mid-century American furniture. Their sinuous design provided lasting comfort and durability, ensuring that pieces like this could stand the test of time. The chair's construction tells a story of