Up for sale is a set of vintage Martin Marquis acoustic guitar strings, suitable for a 6-string acoustic guitar. These strings are made of high-quality bronze and are roundwound for optimal sound quality. They have a string gauge of 0.013 and are coated for a longer lifespan.

The set comes in an open box and is compatible with guitars that require medium tension strings. The MPN for this set is MA150S. These strings are a perfect fit for any musician looking to enhance the sound of their acoustic guitar.