Few College edifices convey such a sense of unity as these of Clare. "Their uniform and harmonious character gives them, at first sight, the appearance of having been built from one design, and carried out at one time."[23] As a matter of fact, however, the existing buildings are of no fewer than five separate dates, each separated by decades, and extending altogether over nearly a century and a half (1638-1768); while of the original fourteenth century structure no trace whatever is left. The eastern and northern sides of the Court are the earliest, built between 1638 and 1643, when the work was stopped, five years after its commencement, by the outbreak of the Civil War; while the stones and beams made ready for its continuance were commandeered by the Roundheads for the new works which they were then throwing up to strengthen the defences of Cambridge Castle. Not till 1669 did the College finances so far recover from this blow as to permit the resumption of the building. The western side was then built, followed by the northern (1683-93), while the Chapel was not added till 1768. But the result of all this patchwork is an exquisite little gem of a Court, its balustraded walls overshadowed by the towering pinnacles of King's College, and giving, as we have said, a wonderful sense of unity, which is partly owing to older work having been altered to harmonise with the newer. [Footnote 23: Atkinson and Clark, _Cambridge Described_.] The College treasury contains some most interesting and beautiful specimens of sixteenth-century plate. One tankard is known as the "Poison Cup," because, mounted in the cover, it has a conical fragment of crystal, such as was supposed, in the pharmacy of the day, to change colour if poison were poured into the vessel. This cup is of glass enclosed in exquisitely wrought filigree work. The thumb-piece is an angel with outspread wings. Another tankard is the "Serpentine Cup," the bowl being of that stone. This too is enclosed in most beautiful silver-gilt work, adorned with flowers and fruit and birds and arabesques. Yet another is the "Falcon Cup," a receptacle in the shape of that bird, originally intended, it would seem, for holding sweetmeats. All these were presented to the College by Dr. Butler, Court Physician to King James the First, of whom Fuller says that "he was better pleased with presents than money, and ever preferred rarities before riches."[24] [Footnote 24: Foster and Atkinson, _Old Cambridge Plate_.]