YOU ARE BIDDING ON A VINTAGE DYNAKIT DYNACO HIGH FIDELITY PREAMPLIFIER PAM-1 ADVERTISING BROCHURE. THEY ARE IN EXCELLENT CONDITION WITH SOME LIGHT WARE, OLD 3 RING BINDER HOLES. PLEASE LOOK AT ALL PHOTOS AND ASK ANY QUESTIONS YOU MAY HAVE. REMEMBER THAT I SELL MOSTLY ANTIQUE AND VINTAGE ITEMS AND THAT THEY ARE MOSTLY LIKELY NOT BE PERFECT DO TO THE NATURE OF THEIR AGE. IF YOU HAVE A PROBLEM PLEASE CONTACT ME BEFORE LEAVING FEEDBACK.