It was not uncommon in the Middle Ages for a pharmacist to make an impression from a signet upon his prescription as a guarantee that it had been prepared by a trustworthy person. A fine specimen of this type of ring is one that belonged to a certain Donobertus.[574] It was found at St. Chamant, dept. Corrèze, in 1867. The material is gold and the ring was set with an antique carnelian around which is engraved on the gold bezel a circular inscription signifying “Donobertus has made this medicine.” The supposition is that, as in so many cases, the functions of the physician and pharmacist were here exercised by the same person.[575] At the trial of Jeanne d’Arc, her judges questioned her closely regarding certain magic rings she was asserted to have worn. From the tenor of the questions we can infer that Jeanne was accused of having used the rings for the cure of diseases and also that they were believed to have been set with charmed stones. Interrogated as to whether she had any rings, Jeanne replied: “You have one of mine; give it back to me.” She added that the Burgundians had taken away another, and requested that if the judges had the firstmentioned ring in their possession they should show it to her. When questioned as to who had given her the ring taken by the Burgundians, Jeanne answered that she had received it in Domremy, either from her father or her mother, and that she believed it was inscribed with the names “Jhesus Maria.” She did not know who had made the inscription and did not believe there was any stone in the ring. She strenuously denied ever having cured anyone by means of her rings. It is characteristic of the simple straightforward way in which Jeanne refuted the accusation of witchcraft that she charged her judges to give to the church the ring in their possession.[576]