Caduceus as a symbol of medicine a review of 257 of the works bearing this printer's device only one was related to medicine. Similar use of the caduceus in printers' marks continues to the present day, with companies including F. A. Davis Company still using the symbol as an element of their insignia. There are a few other examples of use in this period. It may have been used as a symbol by Sir William Butts, physician to Henry VIII. Similarly, physician John Caius, founder of Caius College, Cambridge, and at the time President of the Royal College of Physicians, during official visits to his eponymous
Crosier One is tau-shaped, with curved arms, surmounted by a small cross. The other has a top comprising a pair of sculptured serpents or dragons curled back to face each other, with a small cross between them. The symbolism in the latter case is of the bronze serpent made by Moses as related in . It is also reminiscent of the caduceus of Hermes or the rod of the ancient Greek god Asclepius, whose worship was centered around the Aegean, including Asia Minor, indicating the role of the bishop as healer of spiritual diseases. The staff of Moses is first mentioned