Great letter from Levi Strauss & Company, San Francisco, California. The letter is dated June 15, 1870. This is almost three years before Levi Strauss teamed up with Jacob Davis and got their patent. In one brief online bio of Levi Strauss, it says that by 1870 the 41 year old Strauss had already become a millionaire off his dry good business. The content of this letter, which is addressed to what appears to be William N. Petire Esquire, is about his credit being up to date. The letter shows great penmanship. I love the Levi Strauss & Co. signature at the bottom. I'd really like to know whose handwriting this is.