Photos in year lines

How do I add a photo (.jpg) meant for the public in a year line?

On each page, at the very bottom you have some options - two of them ends with adding the photos on yearlines (if you choose the right yearline when adding photos):

For past auction sale, I guess you know it as this exist from years… Register an example of this type was implemented some months ago and it's very simple: just choose the variant and add photos & source of photos. Some more info can also be added.

Just to let you know that according the below post from Xavier, the registered examples should be used to illustrate coins / variants but the larger describtion of different variants (I guess including your nice graphics) should be still in comment sections. See here: https://en.numista.com/forum/topic44646.html

Thanks, that's not easy to find, why isn't on top of all the auctions?

I have tried to enter the documentation of 1957 200 Finnish markka coin into this: N#11012.

Now I just have to wait to see if this will be related to the proper year line. I still want to keep it the comments section, as well.

What do you mean by documentation, something like MMowiec did or your infographs? If it's your infographs with English text they shouldn't go into the sample pictures because they are shared by all of Numista's language versions.