Shoptalk: Polaroid's Quirky Films - The New York Times
2 Pks. Polaroid Film Coaterless Land Film Type 667 - 16 Count Each Vintage 1981 | eBay
Just got 4 cartridges of original 669 and 667 film, expired September 1990. Will be testing them soon. : r/Polaroid
Polaroid® black-and-white print film Polaroid Type 667, This product has been discontinued. See product Z736627, Fujifilm FP-3000B, Instant Black & White Film | Sigma-Aldrich
Camera review: Polaroid Automatic 100 Land Camera - EMULSIVE
Polaroid Polapan 667 Black and White Instant Pack Film - Photo Equipment - BMI Surplus