Sears one hundred year anniversary Liberty coin

This is an interesting little "coin" that I have never run across until now. It has the face of the Statue of Liberty on its face and says "Liberty" at the bottom with a reference date of 1982, even though the main dates on the coin show up as 1986, the centinnial of Sears Co. Also on the front along the edge, it says "contains authentic material". On the back, it has the number 100 with "celebrating sears new century 1886-1986. The coin is almost quarter sized. Any help on the value of this coin would be greatly appreciated. Thanks for looking and take care!