JAEGER-LECOULTRE & CIE ATMOS CLOCK.Late 1950s/early 1960s. Swiss clock with gold-plated and glass case, perpetual motion powered as relayed by sensitive changes in temperature and atmospheric pressure, base marked "LeCoultre & Cie, metal, caliber 526-5, Swiss", model #248790" - 9 in. high. Estimate $400-600