Original Levi's 501 BIG E. Top button back stamp 6 Fly button back E Top button parallel stitch, waist chain stitch, so it's likely a later model. The red ear back is single, so it's a regular BIG E. Red tab and paper patch are also attached, and I think it's an exquisite, unrepaired item. Color remaining is about 80% in my subjective opinion. Size Waist 70cm. Inseam 76cm (l30) Rise 26cm, Thigh width 26cm, Leg opening 19cm, Total length 100cm, Please note that there may be some errors due to amateur measurements. Model number: 500s Model name: 501XX