Book excerpt: "Gruhn's Guide to Vintage Guitars" is the most extensive and detailed list of specifications ever published for identifying, dating, and establishing the authenticity of an instrument. This new edition is enlarged and updated, making it once again the essential guide enabling collectors, dealers, players, and fans to determine the authenticity, rarity, and relative value of vintage acoustic and electric guitars, basses, mandolins, banjos, and amps. "Gruhn's Guide"'s thoroughness, detail, and clear organization have made it without peer, the must-have tool for discerning an instrument's manufacturer, model, and date - and most importantly, whether it is in original condition. Quote: 'you will not find a better guide, nor one that is so easy to use' - "Vintage Guitar" magazine.