This is a vintage SX mechanical metronome produced in the German Democratic Republic during the 1960s or 1970s. This is a vintage SX mechanical metronome produced in the German Democratic Republic during the 1960s or 1970s. * Design: The metronome features a pyramid-shaped wooden body with a clear acrylic or plastic front cover. * Mechanism: It operates using a clockwork wind-up system, often manufactured by the SX company: The metronome features a pyramid-shaped wooden body with a clear acrylic or plastic front cover. * Mechanism: It operates using a clockwork wind-up system, often manufactured by the SX company Working mechanism.
