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 30 January 2016 by Roma Numismatics Limited, E-Sale 24, lot 705, link to the sale: https://www.acsearch.info/search.html?id=2926263, link to their website: http://www.romanumismatics.com/. Coin resold on 28 July 2017 by Heritage Auctions, Auction 231730, lot 64101, link to the sale and their website: https://coins.ha.com/itm/ancients/roman-imperial/ancients-theodosius-ii-ad-402-450-av-solidus-445-gm-ngc-ms-5-5-4-5/a/231730-64101.s?type=acsearch231730. 

Variant with the letter M of COMOB modified, probably an earlier die with the CONOB mark. The letter M in the word IMP on this example may also be corrected. This coin has a crude style with degenerate lettering. This clearly shows that these coins with their crude style are not imitations but official coins struck by apprentice engravers who did not master Latin. Indeed, in the case of an imitation, we would not have the correction to the letter M of the COMOB mark. Is this a die marked CONOB that was struck and then changed to COMOB for a new series, or is it an engraving error from a period when CONOB was no longer inscribed?

Another copy with different dies and the same features has been sold the 15/06/2017 by Heritage Auctions, Auction 231724, lot 63097 and resold on 31 August 2017, Auction 231735, lot 65096, link to the sale and their website: https://coins.ha.com/itm/ancients/roman-imperial/ancients-theodosius-ii-ad-402-450-av-solidus-448-gm-ngc-ms-5-5-4-5-wavy-flan/a/231724-63097.s?type=acsearch231724. The coin appears to show (the low magnification of the photo makes it difficult to be certain) a mint mark with the letter M modified with a curve at the bottom.

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.

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.