Martin Custom Shop 000 Size Sinker Mahogany, Adirondack SpruceIn the winter of 2019, we spent some time at the Martin Guitar Factory learning about the features and benefits of Sinker Mahogany. The wood used on the back and sides of this guitar is hand selected by Russo Music from a batch of premium Belize Mahogany that had been pulled from the murky, muddy depths of the Central American river system. For hundreds of years, these timbers have been washed over by sediment as they aged to perfection on the floor