NWT Carhartt model B151. Size 33 x 32. These have been sitting unused for a few years. The style used to be called "Canvas Work Dungaree" (as shown on tag in photos), but is now called "Utility Work Pant." These have the same fit/features as the currently produced B151, only the name has changed. These are in a discontinued medium gray color. I'm having some trouble getting the photos to display in full resolution, but the pants are pristine.