Hi! I'm new here. I recently purchased a new Kramer SM-1 from the Gibson Showcase in Memphis. Admittedly, I have much to learn about the guitar. I'd like to start with the serial number. In addition to the number, I noticed a "2ND" stamped into the tip of the headstock, too. I'm not sure what it means. Hope this helps. Please let me know if you need anything further from me. Thanks so much for any light you can shed on this!