The Custom Shop D-18 1937 is, essentially, a D-18 Authentic 1937, built with an adjustable truss rod and a non-VTS top.

This Martin Custom Shop D-18 1937 is just in on trade! Based on its 2024 serial number, you can rightfully guess that the first owner didn't hang onto it for long. But that shouldn't be any knock on the guitar at all -- it sounds amazing, and remains in as-new condition (the relic finish is part of its factory build specs). The Custom Shop D-18 1937 is, essentially, a D-18 Authentic 1937, built with an adjustable truss rod and a non-VTS top. Translation? If you're in the market for a D-18 Authentic, but you prefer the flexibility of having an adjustable rod in your guitar's neck, this is the guitar for you. Priced with its original Harptone hard case. Please note: video sample shows the same model, with an Ambertone top finish.