Here is a great Harman Kardon Vintage Brochure & Spec Sheet for the HK 450 DC Coupled Ultrawideband AM/FM Stereo Receiver 30/30 Watts. The brochure is one double sided page and has some great photos, information and specifications of this item. The brochure has some light handling wear but overall looks fine.
Winning bidder will receive free shipping on this item. Feel free to ask me any questions you may have. Have fun & bid often!