To delete a collection, you need to be on this view: https://www.historypin.org/en/person/35611/
On the collection card, you will see a "delete" button.
To remove items from a collection, you can either:
- Click "Edit" on the pin you want to remove. Scroll down and you will see a list of collections your pin is in. Check or uncheck boxes to change the collection(s) it is in. (Note that a pins need to be in at least one collection).
- Open a pin, so you have a view like this:
On the right, you will see an icon for "repin". Click this and you will see which collections a pin is in. Check or uncheck boxes to move pins in and out of collections (no need to "save" - it's automatic).