Introduced in 1969, the Colorpack II was the first color-capable Polaroid camera to retail for under $30. It features a rigid body and uses spreader bars instead of rollers. Focus is strictly via a distance scale.
Today was a nice sunny day, so I loaded mine with a pack of Fuji FP100c and took it along on some errands. I'm very happy with the results and hope to have them scanned soon.
Camera Wiki, which seems largely copied from The Land List