CONCORDIA AVGG (408 / 420)

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.

Constantinopolis seated on a throne with her head to the right, holding a scepter with her right hand and a globe surmounted by a victory with her left hand. Her right foot placed on a prow.

Photo of a coin sold on 18 January 2017 by Classical Numismatic Group, Electronic Auction 389, lot 805, link to the sale: https://www.acsearch.info/search.html?id=3673894, link to their website: https://www.cngcoins.com/. Photo of a coin sold on 07 December 2005 by Classical Numismatic Group, Electronic Auction 128, lot 423, link to the sale: https://www.acsearch.info/search.html?id=270388, link to their website: https://www.cngcoins.com/. Another coin ahs been sold on 10 May 2004 by Leu Numismatik AG, Auction 91, lot 751, link to the sale: https://www.acsearch.info/search.html?id=169851. Note also the coin sold on 18 September 2003 by Heritage Auctions, Auction 332, lot 11335, link to the sale: https://www.acsearch.info/search.html?id=143047. It is the copy already sold on 29 May 2003 by Heritage Auctions, Auction 326, lot 10465. 

Variant without jewel on the diadem. The same kind of variant observed for Zeno with VICTORIA AVGGG type. 

I note a coin whose mark reads CONOR. Is this the same scenario as what I isolated with Zeno? Here is the coin:

Photo of a coin sold on 04 September 2009 by Heritage Auctions, Auction 3004, lot 20090, link to the sale and their website: https://coins.ha.com/itm/roman-imperial/ancient-coins/ancients-theodosius-ii/a/3004-20090.s?ic4=GalleryView-Thumbnail-071515.

Several coins seem to have the officina letter  shaped like the letter G, this is the tip of the tool which forms a horizontal bar at the end. Coin sold on 06 October 2015 by Gorny & Mosch Giessener Münzhandlung, Auction 233, lot 2748, link to the sale: https://www.acsearch.info/search.html?id=2660973.

This type was used for an imitation of the Silk Road. Coin sold on 08 March 2004 by Gorny & Mosch Giessener Münzhandlung, Auction 130, lot 1760; resold by the same auction house on 06 October 2015, Auction 233, lot 1829, link to the sale: https://www.acsearch.info/search.html?id=2660054.

This series differs from the previous one by the presence of the star on the left on the reverse and a normal size bust. As for Zeno, we notice a finer portrait of the first years (397 / 402), while the portraits of the following series will become wider and Theodosius II will look more to the right, even if mixtures exist from 402. There is a wide variety of portrait styles for this series spanning many years.