Levi's Big E 501 These are Big E 501s, which now commonly sell for over 100,000 yen. The size is approximately W29 L30. The number on the top button is difficult to see, but it's 16. There's a lot of damage and repairs, but the front of the thighs and the seat have been well-tacked, making them easy to wear. Please let me know if you'd like any additional photos.