Authentic vintage educational physics apparatus designed to demonstrate Pascal’s Law (Pascal’s Principle) and the fundamentals of hydraulic pressure. This is a striking piece of laboratory equipment with a beautiful utilitarian look, painted in classic institutional green enamel, featuring solid cast-metal construction and a large, easy-to-read pressure gauge. The setup includes a hand-operated lever pump connected to a hydraulic cylinder, allowing manual pressure generation and instant gauge display. Perfect for: physics classrooms/lab demonstrations collectors of scientific instruments industrial/atelier décor (it looks amazing on a shelf or desk) office decor Features: Pascal’s Law/hydraulics educational demonstrator Components: Hydraulic cylinder + hand pump lever + pressure gauge + valve/pipe assembly Gauge: Analogue dial, marked in kg/cm² (with Eastern European/Soviet-style markings) Finish: green enamel base with metal structure Era: mid–late 20th century (typical school-lab equipment)