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Kurt Cobain's Martin D-18 is found at the Martin Factory in Nazareth, PA. The plaque located under the guitar reads, "This well-worn D-18 was coined "Grandpa" by Cobain himself, and was gifted to the rocker by then girlfriend Mary Lou Lord in 1991. The guitar was was used by Cobain by while on tour for Nirvana's second and most notable album, "Nevermind". Here's a pic of the guitar as well. https://instagram.com/p/6fYMQonc5r/?taken-by=inwaltwetrust
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