Vintage Levi's Jeans Mens 34x30 Straight Black Tab USA 70s Talon Distressed

Vintage 70s Levi's 509 straight jeans. Tag is hard to read but measures approximately 34x30 (see pictures). Zipper fly, Talon zipper. Button stamp says 520. Style code is 40509 3616. Black label with gold lettering. Made in U.S.A. Measurements are in pictures, flat lay. FLAWS: Faint discoloration on left knee, visible in pictures (zoom in). Button hole is loose, may need to sew to keep button in properly. Fading and wear, visible in pictures. Please look at all pictures closely, including zooming in.