Ironforge Pledge Collection

An Ironforge Pledge Collection is a package of five pledge gifts, and is the first hierarchical combining of the pledge items given out by various Ironforge NPCs during the Love is in the Air seasonal event.

All of the Love is in the Air pledge gift packages are non-functional as regards their name and picture. You cannot read an Ironforge Pledge Collection.

Source
If you have five or more  in your inventory, right clicking on any of them will consume five and create an Ironforge Pledge Collection.

Ingredient
An Ironforge Pledge Collection is one of three Ironforge pledge gift packages which are the ingredients of the Ironforge Gift Collection.