Hi @Hojo-YoYo , to add to other people’s commentary, it’s a bit hard to tell from the photo, but I think you have an MCMO there.
I took several comparative photos in this comparison post I made: My perception of The Markmont. Classic Magnum Opus vs. the OG Markmont. Classic
Essentially, the MC (left) will have flat chamfer cut around the base of the cup face where as the MCMO (right) will have a rounded groove instead:
Hope this helps, if you can take some other photos with the light shining at the right angle, I could confirm for you.