Gillette was not as popular as Schick when it comes to injector razors, but as most big companies they did counter the opposition in a way, even if it was only to have a line in the water so to speak. These blades would fit all injector razors, so this would be Gillette prying fingers into the Schick pie to stir things up a bit.
This card of blades seems to be from the late 70's, and with more collector value than anything else, who do you know that owns such a dispenser? That being said, if you are as curios as me, you'd probably pop one into a razor and give it a spin!
This offer consist of 5 unused blades in its original dispenser on a card.