I guess it is generated by calendar, so it might have a +/- 1 year discrepancy.
The coin really shows 1956, so you are totally right.
I do not now how to change it manually.
Maybe a teammember can help.
I do keep my collection in numista up to date, since that's a good help to find variants not mentioned anywhere else, although they are NOT documented! But of course again my excel sheet is up to date with my more than 32.200 different coins (I collect by year and mint).
We have more than just a lot of coins to swap in common.
E.g. I totally understand that you do not want invest on this site, ... I'll continue this on a private message, otherwise we'll get brutally censored.
how to change descriptions of coins.... just that, and maybe how to add variants?
Ciao
Ole
Hmhm. Good question. I could change them for Croatian coins because I am the referee. But for another coins, You can add additional line if possible. If not, then You should ask on forum to some referee with full power to do it for You. Also You can easily change the descriptions if You don't need to add another line.
You go to Modify or add data about this coin and change the description in the line for comments.
Regards
Kuna