Horologium oscillatorium

The single most important book on clocks, by the inventor of the pendulum clock. It forms the centrepiece of this important horological library which also includes Cardanos De rerum varietate, 1557, the first printed book to contain a printed illustration of a clock mechanism; Gemma Frisiuss De principiis astronimae, 1553 which introduced the idea of longitude finding by clocks and the very rare Misura del tempo by Capriglia, 1665, the first monograph on clockwork