Ancient coin - Constantine I

Hello everyone,

This coin was identified for me in a credible numismatic shop as a posthumous minting of emperor Constantine I. (that is, after the year 337 A.D) from the Sirmium mint. The material is bronze and they told me it should be some type Ae 4.
The problem is that I can't find this coin in the catalog, so please, does anyone know what number this coin has in the numista catalog (N#)?



Thank you in advance for your reply

Ahoj.

They even trusted sellers can often, it is necessary to confront it from an already proven source.
Download this app and search and compare coins, only then in the database and if not so add -like a new coin.

https://www.wildwinds.com/coins/ric/constantine/t.html

,, https://www.wildwinds.com/coins/topscript.html#,,

Ivan

I don't use this site for ancient coins because it's very incomplete. The veiled head indicates the coin was produced posthumously, but I don't believe it's from the Sirmium mint. Sirmium would be a SIRM mint-mark, your coin has a SMN? mint-mark, which would be Nicomedia. Something like this:
https://www.forumancientcoins.com/gallery/displayimage.php?album=search&cat=0&pid=104138#top_display_media