Original vintage ad for DU PONT.  Mylar polyester film with E. Power Biggs, makes his own recordings on tough, long lasting tapes.  The world's most recorded classical organist says more convenient to use and saves space.
This unique old one page 1961 high fidelity stereo equipment trade magazine advertisement would display beautifully matted and framed.  It would make a nice accompaniment to your vintage stereo.