Levi's 517. I believe it's from around the 70s, but it's unclear as there are no tags. The back pockets are single-stitched, so it might be a 66 model. I'm also unsure if there was a 66 model with an orange tab. The number on the back of the button is unknown. The length is long, so you can hem it to your preferred size. It appears to be deadstock. It seems like some starch still remains. Waist: 41 cm Inseam: 91 cm Hem width: 27 cm Dark blue bootcut denim, featuring a metal zipper and contrast stitching. - Style: Bootcut - Color: Dark Blue - Zipper: Metal - Stitching: Contrast Stitching Thank you for looking.