Authentic Electromechanical Impact Signal Bell – 220V – Heavy Industrial & Military Use – Untested – USSR, 1970s An authentic Soviet industrial electromechanical signal bell, type ZVP-220 M4, manufactured in 1978, as clearly indicated on the original factory identification plate. This device represents a classic example of Cold War–era Soviet industrial and military signaling equipment, produced for continuous use in demanding environments where reliability and acoustic power were essential. !!!!!!! The operational status of the device is unknown. Exact identification (from original factory plate) Type: ZVP-220 M4 Operating voltage: ~220 V / 50 Hz Year of manufacture: 1978 Serial number: No. 25981 Technical standard: TU16-739-059-78 Country of production: USSR All markings are original and preserved, confirming the authenticity and period of manufacture. What this device is? This is an electromechanical impact-type signal bell, featuring: - a massive cast-metal industrial корпус, - an external metal bell (sound dome), - an internal lever-driven ударный механизм, - a solid base with mounting points for stationary installation on walls, machinery, electrical panels, or control units. The construction is strictly utilitarian, designed for durability and long-term operation rather than decorative appearance. Original purpose and application Such signal bells were widely used as: - emergency or technological alarm signals, - audible notification systems in factories and industrial workshops, - signaling devices at electrical substations, railway facilities, warehouses, and lift systems, - components of industrial and military infrastructure throughout the USSR. These devices played an important role in safety systems and operational discipline within Soviet heavy industry and technical facilities. Condition & functionality notice (important) !!!!!!! The operational status of the device is unknown. The bell has not been connected to a power source, and there is no possibility to verify whether it is working or not. It is therefore offered strictly as a vintage industrial artifact and collectible historical object, not as a guaranteed functional electrical device. This point is stated deliberately and must be clearly understood by the buyer. Surface & preservation: The item retains its original factory paint and authentic industrial patina, with visible signs of age, use, minor paint losses, and oxidation on metal elements. These features are consistent with long-term industrial service and add historical character rather than detract from value. No modern restoration or repainting has been carried out. Dimensions: Please refer to the photographs with measuring tape for accurate dimensions. Measurements are shown visually to avoid incorrect assumptions. Approximately: Height - 28 cm Width - 12 cm Depth - 12 cm Weight - about 2000 grams Historical context: Industrial signaling devices of this type were integral elements of Soviet Cold War infrastructure, where sound-based alarms were essential in environments with limited visibility, high noise levels, or strict safety requirements. Today, such objects are increasingly appreciated by collectors of Militaria, industrial design, and 20th-century technical history. Shipping: Ships from Ukraine within 3 working days after auction ends. Registered shipping with tracking number (Track & Trace). Estimated delivery time from Ukraine: 15–45 days Ships from Ukraine (non-EU). Please note that customs duties may apply in your country.