Two Byzantine icons were the starting point for the largest private collection of Greek art—the P & A Canellopoulos Collection. The icons in the collection represent various eras and styles:
- The era before the Fall of Constantinople in the 14th and early 15th
- The Cretan School, with characteristic works signed by great masters (Michael Damaskinos, Emmanuel Lampardos, Frangias Kavertzas, Ieremias Palladas, Victor, Spyridon Stentas, Filotheos Skoufos, Emmanuel Tzanes).
- The Ionian School with both signed and unsigned icons with the attributes of major painters of the time (Poulakis—to whom Panagia “Tree of Jesse” is attributed; Nikolaos Kallergis).
- Painting from other islands, as typified by the icon of Archangel Michael by Iakovos from Amorgos.
- The Macedonian School, modelled after the art of late-Hellenistic and Roman times, as typified by the bust of Christ Pantocrator with Panagia and St John in supplication, which is thought to form part of the cycle of the famous contemporary painter Frangos Catelanos.
- The icon workshops of Mount Athos. It is the time when many painters, encouraged by Dionysios, a monk from Fourna, Agrafa, copy icons that survived on the Holy Mountain. During that time there is a trend for a return to the standards of the Cretan masters of the 15th and 16th
The collection also includes additional lines of exhibits such as:
- Jewellery
- Liturgical objects
- Embroidery, gold and silver metallurgy, wood carving.