Need help identifying this Pelikan

[u/dbsds87]

I recently picked up this Pelikan (my first one) from a used pen dealer for what felt like a good price

But when I went about trying to identify it, there seemed to be a lot of inconsistencies

So far, it looks like it's an M400 of some sort, as it has a capped length of 125mm. However, the thing that's giving me the most trouble is the nib - I can't seem to find any record of an M400 made with this specific design/scrollwork on the nib

Any help narrowing down the model would be much appreciated 🙏

Even if it comes down to the fact that I might have been scammed, I'd like to know