This 15¢ Automobile Tail Fin coil stamp, which features the fin of a 1959 Cadillac, met the need for the first-class, presort postcard rate. This stamp, along with the 25¢ Juke Box coil stamp, was the first edition of the new "American Culture" series. Bulk mailers were able to use the non-denominated stamp at various presort rates, with the postage difference being paid at the time of mailing. In 1996, a self-adhesive version was produced to meet consumer demand.