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.
REFERENCES:
Camera Wiki, which seems largely copied from The Land List
Notes from Mosquito Hill 