Purchased new from the Levi’s store on Lex/50th in Manhattan in the mid 90’s. LIKE NEW condition. Made in Argentina. 100% bovine leather, satin lining. Approximately 10% of Levi’s products feature a Red Tab with only the ® symbol. Rare. Most Levi’s jeans have a three-digit code on the back of the top button to indicate the manufacturing plant. A blank back like this one is uncommon, likely suggesting a special production. Traditional 501s feature a button fly, variations with a zipper fly have been produced, often for specific markets/special editions. Originally sized @ 36x36, however I had them professionally hemmed at the store when I bought them. Shortened about 2 inches. (approx) Waist: 17 1/2 Front Rise: 8 1/2 Hip: 19 1/2 Thigh: 11 Length: 41 Knee: 9 1/4 Inseam: 28 Leg Opening: 8 1/2 NO returns. Serious buyers only please.