Esoptron astrologikon. Astrologicall opticks. : Wherein are represented the faces of every signe, with the images of each degree in the zodiack: thereby describing, 1. The nature and quality of every person, according to the degree ascending in the east at his nativity. 2. The virtue and signification of every planet through the 12. signes. 3. A most excellent description of the more hidden and abstruse influence of [symbol for Mercury] in his [symbol for conjunction] with all other the planets. 4. A clear explanation of the signification of the horoscope in any signe of the zodiack. / Compiled at Venice, by those famous mathematicians, Johann. Regiomontanus and Johannes Angelus.

Licence: Public Domain Mark

Credit: Esoptron astrologikon. Astrologicall opticks. : Wherein are represented the faces of every signe, with the images of each degree in the zodiack: thereby describing, 1. The nature and quality of every person, according to the degree ascending in the east at his nativity. 2. The virtue and signification of every planet through the 12. signes. 3. A most excellent description of the more hidden and abstruse influence of [symbol for Mercury] in his [symbol for conjunction] with all other the planets. 4. A clear explanation of the signification of the horoscope in any signe of the zodiack. / Compiled at Venice, by those famous mathematicians, Johann. Regiomontanus and Johannes Angelus. Source: Wellcome Collection.