Johannes Regiomontanus, Epitoma in Almagestum Ptolomei, Venice, 1496. Typ Inc 5197Houghton Library,
Johannes Regiomontanus, Epitoma in Almagestum Ptolomei, Venice, 1496. Typ Inc 5197Houghton Library, Harvard University -- source link
#ptolemy#almagest#astronomy#incunabulum#15th century