This is a pair of USA made twill work pants circa 1950s-1960s produced by Blue Bell, the now defunct former parent company of Wrangler. These started out as a grey color but I overdyed them to a dark brown using fabric reactive procion dye (keeps its color better than RIT or similar). There is one spot that turned out slightly lighter than the rest of the pants on the left thigh that is shown in the last picture. Otherwise, the pants are in great condition for their age. Includes original paper size tag and pocket flasher.

Measurements
Waist: 14.5"
Rise: 13"
Thigh: 12.75"
Inseam: 33.75"
Leg opening: 9.25"
Outseam: 45"