IMP XXXXII COS XVII P P (type I, B) (441 / 450)

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 left on a throne, holding a spear with the left hand and a globe surmounted by a cross with the right hand. A shield behind the throne and a star in the field to the left.

Photo of a coin sold the 09/01/2009 by Stack's Bowers Galleries, Sale#148 - N.Y.I.N.C Auction, lot 435, link to the sale: https://www.acsearch.info/search.html?id=564242, link to their website: https://stacksbowers.com/.

Mark CONOB.

Variant with INP instead of IMP on the reverse. Another copy with the unmistakable INP word has been the 13/08/2013 by Stack's Bowers Galleries, August 2013 Chicago ANA Auction, lot 34085, link to the sale: https://www.acsearch.info/search.html?id=1652305. 

Note another coin of the same type with a Germanic barbarian style, further showing the multicultural composition of the Constantinople mint at this period. Coin sold the 10/10/2016 by Gorny & Mosch Giessener Münzhandlung, Auction 241, lot 2971, link to the sale: https://www.acsearch.info/search.html?id=3385602.

Type I: with mark CONOB or COMOB (CONOB here) and the reverse legend usually ending before the shield. No punctuation on legend on either side. A square throne, the right leg as a triangular protuberance, stiff drapery and vertical scepter. This corresponds to type III of RIC X. Var B is the same as RIC X: smaller and rounder shield.

See AYC #21, RIC 323: https://www.all-your-coins.com/en/archives-anciennes/romaines-imperiales/imp-xxxxii-cos-xvii-p-p-type-i-a-441-450, for the commentary explaining the entire coinage.