I was showed a table clock whose balance was only a crystal ball, sliding on parallel wires, without being at all fixed, but rolling from stage to stage till falling on a spring concealed from sight, it was thrown up to the utmost channel again, made with an imperceptible declivity, in this continual vicissitude of motion prettily entertaining the eye every half minute, and the next half giving progress to the hand that showed the hour, and giving notice by a small bell, so as in 120 half minutes, or periods of the bullet's falling on the ejaculatory spring, the clock part struck. This very extraordinary piece (richly adorned) had been presented by some German prince to our late king, and was now in the possession of the usurper; valued at £200.