All About Pocket Knives

In the box my Northfield Primitive Bone knife was returned in, there were four gold colored sheet metal "knife blade blanks" shaped very much like the main blade on the returned knife. At first, I thought they might be blade openers....but they seem too flimsy for that. They're too big for key chain fobs. The tang of the blank has "Great Eastern Cutlery, Titusville, Pa." stamped on them. Any idea what they are for?

Thanks
Dewman

they are indeed gec blade openers. saw some on the bay for $9.95.