From that link:
Mirage
approach
Flight characteristics Understable
Produced around 1985-1987
PDGA Approval date Not approved
Detailed informatio
Height 1,8 cm
Rim depth 1,4 cm
Inside rim diameter 19,2 cm
Rim thickness 0,9 cm
Notes:
Innova model based on the Aviar, basically a beadless Aviar molded in a plastic that shrink much more than the original Dx-plastic. Not approved by the PDGA cause of the 20,8cm diameter. The (Aviar) Mirage was Innova's first venture into the retail market, circa late '84 or early '85. They where a least 4 different versions. The first version has the original artwork, which lacked the thin outside ring, the offset lines on the inside ring above the horizon line, and the lines or graded screen inside the letters. It also is engraved with the large Patent Pending. This and the two subsequent designs were never sold to the public. After the 1st version was viewed by Tim S. & Dave D., they decided that it needed more. To the art was added the thin outside ring, the offset lines (longer version) on the inside ring above the horizon line, and the lines inside the letters. 1st and 2nd version where all light weight,105- 112grams, no bead and a large patent pending engraving. The 3rd version, which had no visible artwork changes was stamped on the patent numbered beadless Aviar. The 4th and final version was also patent numbered, but featured shorter offset lines as well as dots instead of lines inside the word "Mirage".
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