christies auction first calculating machine blaise pascal 1234751200

Christie’s will auction a Pascaline, the first calculating machine in history, developed by Blaise Pascal in 1642, at a sale in Paris on November 19. The estimate for the box decorated with ebony sticks is €2 million to €3 million. This particular model, dedicated to survey calculations, is the only one in private hands among nine surviving originals, and it remains fully functional. The auction also includes 15 volumes of Pascal’s writings, including a first copy of *Pensées* (estimate €200,000–€300,000), and works by Descartes, Newton, and others.