Check the listing for details. Vintage Demo Model THERMOCREST Educational Physics Aid Soviet USSR 1957. Condition: Used. Listed at 17.99 USD. An excellent copy for the collection of teaching aids of the USSR. Rare Soviet vintage "TERMOCREST" device complete with packaging box and a copy of the instructions in Russian. Designed for practical classes in secondary schools on the study of thermoelectricity. Case material – bakelite, conductors made of iron and constantine. Manufactured in the USSR at the Moscow plant "FIZELECTROPRIBOR" No. 4 in 1957. Panel dimensions - 70x70х8 mm (2.6x2.6х0.4 inches). Photo are part of the description. Look carefully. Feedback Policy: If you are pleased with your purchase, please leave us positive feedback once receiving the item, and we will return the feedback upon you. If you have any problem with the outcome of the transaction or product, please don't respond with negative feedback before contacting us. Contact Us: Please contact us if you have any questions about items. Worldwide shipping. You can sell to customers in Central America and the Caribbean, South America and Oceania, by agreement on the cost of delivery parcels. The cost of delivery will be more expensive. Write and we can agree. Item ships within 1 business day after the receipt of the payment. The item will be shipped by registered airmail by Ukrainian Postal Service. Shipping takes 14-24 business days to Europe, USA, Canada, Australia and Japan. Money back policy: 30 days guarantee.Despite the hostilities on the territory of Ukraine, the post office is working, but delivery times may increase.