"The final small color Polaroid camera of any distinction was the SX-70. The company got into the practice of giving film and cameras to well-known photographers, who would repay the gift by the donation of some pictures made with the materials. Toward the end of his life Walker Evans could be found with multiple cameras, and a case or two of SX-70 film. When he found a suitable subject, Evans would expose a case or two of SX-70 film. When he found a suitable subject, Evans would expose a full pack of eight sheets of the same thing, stuffing each successive exposure in his jacket pocket while they were developing themselves. ... Evans tended to find a young man to drive the car, make the tea, and carry the packages, so he could keep working even as he became more and more frail with advancing age. He had the habit of collecting old signs and detritus from the roadsides, and those of us who traveled with him were often pressed into service to steal the old advertising signs or even, on some occasions, actual road signs."
excerpt from The Physical Print
As an aside: I'm sad to report that my beloved SX-70 with sonar autofocus has died. 20 years of rough handling and several trips around the world have left the plastic body cracked. A few shots from this camera can be found here
related: The Polaroid Collective