Question Marks in year slots [opgelost]

Hello, I have see question marks as years in many banknote pages and I don't feel they have a place in any year line. Could someone please tell me why there are question marks being used as years with no other info that would be great. This is an example that I would like the question marks taken out of the first two year slots. I cannot modify them out of the year slots as when I hit modify it says I haven't made any changes so my request doesn't go through. If a catalog referee could take out these question marks that would be great, thanks!

https://en.numista.com/catalogue/note202474.html

I think they are remnants of double year lines when people try to delete the year they can just delete the number and what is left is a ?

Thanks so much. I recently deleted two year lines and those question marks appeared. Any idea how to remove them?

You can't you can only ask a catalog admin or higher as far as I know.
If nobody claims to own the year line I think a referee can do it too.

Okay, that makes sense. Thanks!


Any referees or admins that can remove these questions marks on the banknote page I posted earlier please do so. Thank you!

It's better for you to PM us a link.