There has been a ton of great National guitars coming through lately, and this one might be my favorite ever! Serial number 426W as well as it's features put it in the 1930-33 range. The "W" means the walnut finish. It's also tough to find one of these that has not had a replace neck or cone, and this instrument has both of the original. Killer tone, and mojo for days. Comes with a brown gator print chip board (in somewhat poor condition) that might have belonged to a Gibson at one point. Awesome guitar!