Effanbee Doll

This doll to my knowledge has never been out of the box. It was bought at a store sometime in 1987-1988 by my grandfather. The box has original tags which read: "The Presidents" Collection Style No. FB7906 - Dwight David Eisenhower. The price on the box is $75. There is a small rip in the tissue paper surrounding the doll. The doll itself appears to be in or at mint condition and the originl ties are still attaching the doll at neck and feet. The doll comes with a Crtificate of Authenticy, which at the bottom states that the vinyl doll (which i assume this one is) was only made 1987 and 1988. My Grandfather has wishes to sell them however I am only concerned with its value at this point in time.