Unidentified (photo from www)

Constantine and Helius

Constantinople, Church of Sergius and Bacchus, Map

Constantinople, Column of Arcadius, drawing

Constantinople, Golden Gate at the beginning of the twentieth century, seen from the outside.

Constantinople, Hagia Sophia, Map

Drawing of the seal of king Darius the Great

The seal of king Darius the Great

adam \ dârayavauš xš (I, Darius the king)

Unidentified (photo from www)

A densimeter

DSk (drawing)

Dusky Pademelon