C. F. Martin & Co.® proudly announces the launch of Project 91, an extraordinary new collection that brings to life 91 unique guitars, each a direct descendant of an original pre-war D-45—among the most coveted acoustic guitars ever made. Crafted with Brazilian rosewood backs and sides, every Project 91 instrument is individually linked to its historical counterpart by serial number, honoring the spirit, craftsmanship, and tone of Martin’s golden era.