Soon to be an ARTIFACT in history , This product is for an ORIGINAL VINTAGE service manual for THE ZENITH "ROYAL 40-50K-60" TRANSISTOR PORTABLE RADIO. This service manual is in GOOD shape and fully intact.No writing found on any page. INSIDE PAGES VERY CLEAN. Schematic diagram is in EXCELLENT shape. Has binder-Hole tears and edge wear as seen in pic. Shipping anywhere in the USA is FREE on this item.Orders outside USA, please add $4 to cover shipping cost.Thank-you for your interest in my product and thanks for shopping with us!