Gibson L1 serial number 17411, year 1914. In 1914 Gibson and Martin are battling it out. Martin with their classic flat top guitar with its origins from the finest of European instrument makers, and Gibson building elaborate arch top guitars that some would say are the most beautiful guitars in the world. When you see this Gibson L1 in its spectacular condition, the aesthetic beauty of the design is as almost as spectacular as it plays and sounds. A true masterpiece