I went to the Harrisburg Gander Mountain today to pick up a model 10 2 inch I have on layaway. The service there is mediocre and I had to wait a bit. While I was waiting, I noticed an 18-3 in the case. It was priced at $599. Which is more than I wanted to spend. But when I finally got to check it out I found that it had next to no wear. I put down the deposit. The serial # is15K49XX. Can anyone tell me the born on date? Approximately would be fine.