Schaffer Collection of Russian Art Treasures

Here's a great article with an actual catalog from the Schaffers - before ALVR was opened - offering Faberge and Imperial treasures for sale in New York

Church Fathers - Tympana of Hagia Sophia

On either side of the nave of Hagia Sophia are great tympana, most of the mosaics there have been lost, but a few fathers of the church survive