• AAM = Allentown Art Museum (Allentown)
• Abatellis = Galleria Regionale della Sicilia, Palazzo Abatellis (Palermo)
• ACB = Accademia Carrara (Bergamo)
• AGNSW = Art Gallery of New South Wales (Sydney)
• AGO = Art Gallery of Ontario (Toronto)
• AIC = Art Institute of Chicago (Chicago)
• AKG = Albright-Knox Art Gallery (Buffalo)
• AKG = Buffalo AKG Art Museum (Buffalo)
• Ala Ponzone = Museo Civico Ala Ponzone (Cremona)
• AM = Ashmolean Museum of Art and Archaeology (Oxford)
• Ambrosiana = Pinacoteca Ambrosiana (Milano)
• APM = Alte Pinakothek (Munich)
• Apsley House = Wellington Museum, Apsley House (London)
• ARTIZON = Artizon Museum (Tokyo)