It would be nice if there were a way to remove individual coins from my “Contribute to the catalogue” page.
For example, I get a suggestion to add a bigger picture. My coin is poor quality, so the existing small picture is better than a picture I could provide. If I could remove or hide this coin from my “Contribute” page, I would be able to see and focus on only coins that I might be able to improve upon.
Next time I sit down with my coins, I am not going to remember which coins I have already tried to improve upon.

