Neume initial
Jabir ibn Aflah (Geber) - Correction of the Almagest
Polyptych by Piero della Francesca
Orvieto Cathedral
Crucifix
Madonna della Pergolata
St Antony of Padua Polyptych
Collegiata di Santa Maria Assunta
Collegiata di Santa Maria Assunta
Collegiata di Santa Maria Assunta
Siena Cathedral
Siena Cathedral
Siena Cathedral
Siena Cathedral