French medieval engraivng. Al-Farghani or Alfraganus. 850 AD. Ptolemaic astronomer, Wrote 'Elements'. Alfraganus prepares his book on science of mathematics , Rudimenta astronomiae , Ferrara 1493

Image No. F15ECT408  AAA Collection

French medieval engraving. Al-Farghani or Alfraganus. 850 AD. Ptolemaic astronomer, Wrote ‘Elements’.

Alfraganus prepares his book on science of mathematics , Rudimenta astronomiae , Ferrara 1493

©Ronald Sheridan/Ancient Art & Architecture Collection