They're 100% dark blue cotton indigo made in the USA. Features are red line outside leg seams, jerky leather waist tag, big E red tab, single stitch rear pockets, hidden rivets, crotch rivet, 4 button fly and no letter or number on the back of the waist button.
The actual measured size is a 34 inch waist and a 30 1/2 inch inseam. There are 2 holes where the rivets attached the buckle back straps to the the jeans. At some point (for some crazy reason) the buckle, straps and rivets where removed, as you can see in picture #10. I do know that at some mercantile stores shears or scissors were used to cut the buckle and straps off.
I don't know if this included the removal of the rivets. The hem is very solid with only a few nicks on each hem as you can see in picture #12. There are "NO" stains or dirt. Thank you for looking and if have questions please ask. The item "Vintage 501XX Big E Buckle Back Riveted Crotch Jerky Tag Red Line USA 34x30 1/2" is in sale since Sunday, November 05, 2017. This item is in the category "Clothing, Shoes & Accessories\Vintage\Men's Vintage Clothing\Jeans". The seller is "1barnfind1" and is located in Mountain Home, Idaho. This item can be shipped to United States.