This is a very rare marketing brochure for the Mark Levinson Number 500H Series Amplifiers. The brochure features detailed information about the product and its features, as well as high-quality images. It is a must-have for any serious collector or enthusiast of vintage audio and video equipment.

The brochure is in excellent condition and has been well-preserved over the years. It is a true collector's item and a great addition to any vintage audio and video collection. Get your hands on this rare piece of history today!