IMP XXXXII COS XVII P P (type II, 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 on 23 May 2016 by Numismatica Ars Classica, Auction 92, lot 847, link to the sale: https://www.acsearch.info/search.html?id=3108261, link to their website: https://www.arsclassicacoins.com/. 

This coin shares the same obverse die as a coin bearing the COMOB mark; see the comments here regarding (among other things) the minting order and other very important details: https://www.all-your-coins.com/en/archives-anciennes/romaines-imperiales/imp-xxxxii-cos-xvii-p-p-type-ii-b-441450-1203. 

Note that the letter M of IMP with wear could be interpreted as an INP, so one must be meticulous when classifying a coin in a classification number linked to the INP variant and classify only those examples that leave no doubt.

Type II: with the mark CONOB or COMOB (COMOB here) and the reverse legend generally ending at the level of the shield. No legend punctuation on the reverse. A square, upright throne, the right knee is rounded, natural drapery, and a vertical scepter. This corresponds to Type I of RIC X. Variant B is the same as RIC X: a smaller, rounder shield.