General Electric Miniature Lamps

Found these at an estate sale in Oakland earlier this spring. As an ex-graphic artist, I'm often drawn to totally useless items that have really great graphics, and this is a prime example. The boxes are unopened and (one would assume) full of these little bulbs. The bulbs look like they would fit an old flashlight. I would guess them to be from the 1950's, but I honestly have no idea.