Very nice. Here's a pic to give you an idea what the pattern of one-iron Laminated barrels look like. In the picture, the barrels are etched to bring out the pattern, but not yet browned at that time. Yours look like they might be the same, as the visible markings are fairly angular. However, It's possible they are really Twist, (Skelp) and merely labeled "Laminated"
If it's in usable condition, go shoot some quail with that old girl!
Here's more info and pictures of Laminated barrels from DocDrew's site:
https://docs.google.com/document/d/1__gn3XKjLX_4V0LguzoVGBwJRFS6SxsWGzUwHq93neo/editRegards
Ken