Original antique era item. Letter enclosed with circulars advertising Color and Black and White print. For the SAL the Self Adjusting Leverless Flexible Steel Harrow Manufactured by The Defiance Welding Company Defiance OHIO USA folding pamphlet brochure. Patent Applied For. BOKOP trademark. Also a letterhead Defiance Welding Co. manufacturers of Bokop Steel specialties Defiance Oh March 10, 1914 to Mr. Lewis A. Boggess of Five Mile WV Kanawha County. advising him enclosed in this letter are the circulars he requested, and his own typing of a salesman trying to sell his products. Signed F.A. Bokop. and another illustrated hand bill flyer type ad Describing the SAL. Nice Super Rare find. I can't find much on the company in a brief search. Nice addition to any collection of local advertising Agricultural farm equipment advertising ephemera.