Over time, we have called it packfilm and peel-apart and Polacolor. But it's all Type 100 - a broad category of 3.25" x 4.25" print films, served from a continuous pack of 10 frames.

669 is actually Type 100 film, but in the mid-1980s, Polaroid threw their previously logical naming system out the window... We can't find any clear documentation about why this happened, especially since 600-series integral film was already a thing and the potential for confusion is obvious. Whatever the reason, 669 has become legendary over time for its flexibility and longevity.

It was great for emulsion lifts, transfer prints, and even blowing up your slide film - and although it never hit the mainstream like integral film, 669 is believed to be Polaroid's single best-selling peel-apart film product ever.

Type 100 film was arguably Dr. Land's most iconic invention. We say this because these 3.25" x 4.25" photographs were the origin of the enduring myth that you must "dry out" a Polaroid picture by shaking it.

Yes, for a short time, in the earliest days of Type 100, you were required to coat the film after processing, otherwise the image may fade or be otherwise damaged. And that coating was indeed wet, so people started shaking them to dry them quickly.

And we just never stopped shaking them, even though it really serves no purpose. 60 years on, this shaking thing is engrained in our DNA. Hand a child a Polaroid and see what happens...