If you’re Generation Y or older, there’s a good chance you’ve used a View-Master in your childhood. Now, the old school toy returns with a new school angle.

Long before virtual reality was a thing, a toy was built to show the world through stereo photography, or 3D images. Called the “View-Master”, it was basically a small slide image viewer that would read two images taken from a left and right view point at once, and when paired, would immerse your eyes in a slightly three-dimensional world.

These images were stored in View-Master cartridges, which were basically circular pieces of cardboard holding together 14 images set in 7 pairs.

Back when we were kids, the images used in View-Masters were often about places you could travel to, or scenes from movies, and these little experiences would act as a sort of early virtual reality, even though there was no movement or momentum inside the world.

But when video games started taking over, the View-Master took a backseat, because it just couldn’t compete with the digital world.

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Toy maker Mattel hasn’t given up on its gadget, though, and has been working on a way of bringing it back.

Now it’s 2015, and over 70 years later from when the original View-Master popped up in 1939, the way of bringing this toy back from the dead will be with phones.

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Specifically, it will be with Android and iOS-based phones, and a special set of View-Master cartridges. There’s no paper in this cartridge, and no film. Rather, these are plastic discs with little coloured squares inside of them, and a label on the top.

When a phone is loaded in the special View-Master viewer with the app running, you’ll find an augmented reality model appearing on screen, showing up for your eyes to see.

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From here, you can touch the screen by pulling down on the View-Master release trigger, which is the same style of orange release mechanism that the old View-Master used to use to skip forward.

When you pull this mechanism down, the 2015 View-Master will let you get up close and personal with a digital representation of what’s on the cartridge, and will let you see more models.

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