The Rainbow Hawk-eye was based on the Cartridge Hawk-Eye camera, but in a variety of colors, including blue, green, brown, maroon, red and black. Oddly enough, the black seems to be the least common, yet has the least value. In addition to color, they can be found with different grain patterns to the outer covering. The Rainbow Hawk-Eye was available in the two sizes that are common to many of the hawk-Eye line, No. 2 and 2A. The No.2 used 120 film, creating images that are 2-1/4 x 3-1/4 inched. The 2A made 2-1/2 x 4-1/4 inch images on 116 film. To open the camera, you unlatch the two latches, then turn the wind knob while pulling, and it will pull partway out. The back of the camera will then slip off. Both sizes of the Rainbow Hawk-Eye were available in two models, Model B and Model C. The Model B had two viewfinders, the Model C was a simplified version with only one. The Model C is the more common of the two. The Rainbow Hawk-Eye was also produced in Canada. The Hawk-Eye No. 2 model C of 1913 was as is noted a simpler model with just one viewfinder, and no choice of aperture. The camera was reissued in 1930 as anniversary giveaway of Eastman Kodak Co. for children at the age of 12. This special edition came with a round sticker denoting the same and also had paper work plus a box with similar markings. The camera had a standard meniscus lens and a rotary shutter. It is reported that 52,000 of the early cameras were made and much more of the anniversary edition. The camera was produced from 1930 to 1933.