CONCORDIA AVGG (411)
Bust of Theodosius II facing, cuirassed, wearing a helmet with crest and a pearl diadem. Holding a spear passing behind his head with the right hand and a decorated shield with a horseman slaying an enemy, with the left hand.
Constantinople seated on a throne with her head to the right, holding a scepter with her right hand and a shield resting on her knee with her left hand. Her right foot placed on a prow. The inscribed shield with X _ VOT _ XX in three lines.
Marks
Photo from the catalog quoted below, with kind permission of the Bibliothèque Nationale de France, link to Gallica for download the catalog: https://gallica.bnf.fr/ark:/12148/bd6t5382634g/f239.item. Sale of the 26 to 29 November 1968, Dr. Busso Peus Nachfolger, Katalog 269, lot 316. Coin illustrated plate VII.
This coin has a jewel on the tiara as for the other coins that I have seen for this series.