kshanebrooks

My son and I bought this guitar this past weekend. Obviously it REALLY OLD. Inside thru one F-Hole it says, N-2. Thru the other F-Hole it says L 353. I've scoured the internet and can't seem to find anything like this. Can someone please help? Have you ever seen on? What year are they from? How much are they worth? Any help would be greatly appreciated! Thanks, Shane