Vintage, 1930 National Square Neck Tricone Resonator Guitar. Serial number 1953. All original with exception of the strings and my husband (he was a guitar builder and repair man) installed a pickup (without altering the guitar) that can be easily removed. It has three small dents and a small patch of tarnishing of the silver on the front I included photos. I have an old hard case I can use for shipping. Known history: This was my late husband's slide guitar. I bought it for him in the late 80s.