The "W" of the body is a middle initial, and the "L" in the lower part of the Hallmark is of course, for Luthy. The other particular is a matter of Max Luthy or Carl being the artist marking the work. I have found no defects like broken Turquoise, noticeable scratches, etc. It has a warm deep tarnish... I believe that you will be pleased, especially with the High Grade Turquoise stones!
There is a silver colored Pyrite in the Turquoise matrix. And it just may be from the Morenci Mine in Arizona. T he workmanship is exceptional and fine. It employs a variety of design elements that are not at all typical of what we usually in Native jewelry. This Buckle is unique in character and will be appreciated often as you wear it.
When you take a look at the pictures, please inspect the Buckle carefully for the fine detail in both design and execution. Your friends may compliment you and your taste in Native Jewelry. Reference Books - This artist is referenced if there is a page # shown below. "AMERICAN INDIAN JEWELRY I" - Gregory Schaff. "AMERICAN INDIAN JEWELRY II: A-L" - Gregory Schaaf."HALLMARKS OF THE SOUTHWEST"- Barton Wright. "THE LITTLE BOOK OF SOUTHWESTERN SILVER" - Billie Hougart. "ZUNI THE ART AND THE PEOPLE"- Bell- Volume 1-3. The item "Signed CARL LUTHY SHOP Navajo BELT BUCKLE Sterling Silver Double Naja TURQUOISE" is in sale since Friday, October 26, 2018. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Other Native American Jewelry"." and is located in Tucson, Arizona. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Guadeloupe, Luxembourg, Uruguay, Russian federation, South africa.