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Aspectsptolemytetrabiblos Hervagius. en Figure depicting how the cusps of the several signs regard each other by aspect From the Hervagius edition of Ptolemy's Tetrabiblos published in Basel Latin text by Plato of Tivoli Hervagius edition of Ptolemy's Tetrabiblos Hervagius or anonymous engraver PDold PDArt Uploaded with Astrological