Dr Dee’s mirror
Mexica*, 15th-16th century AD
This mirror was used by the Elizabethan mathematician, astrologer and magician John Dee (1527-1608/9) as a ‘shew-stone’, one of many polished translucent or reflective objects which he used as tools for his occult research.
The mirror, made of highly-polished obsidian (volcanic glass), was one of many Mexica cult objects and treasures brought to Europe after the conquest of Mexico by Cortés between 1527 and 1530. Mirrors were associated with Tezcatlipoca, the Mexica god of rulers, warriors and sorcerers, whose name can be translated as ‘Smoking Mirror’. Mexica priests used mirrrors for divination and conjuring up visions. Dee had an interest in optics and optical mirrors or ‘glasses’ as described in his private diary and works. he was also interested in psychic phenomena and, from 1583, worked with Edward Kelly as his medium. Kelly would see visions in the ‘shew-stones’ of ‘angels’ that communicated by pointing to one square after another in tables of letters and unknown symbols, which Dee and Kelly transcribed.
Also pictured is Dee’s crystal ball.
via The British Museum