Map Coal Outcrops 1878 KKK Geological Westmoreland County Penn Victorian DWZ1

This map bears the initials of the Klu Klux Klan on the back, a very prominent group in SW Penn Bituminous coal mining and production. How they were involved in this map is a mystery and I cannot find any history on it... whether they funded survey maps or not, I do not know. But there is no other KKK in Penn in Victorian times. In good Victorian antique condition with less than typical wear/staining and foxing...as seen in pics. There are tears, holes in the deep creases as this map has been folded in the back of a book for about 150 years From "Geology of Southwestern Pennsylvania" volume 3, 1878 1st edition. NOT Reproduction despite its excellent preserved condition Approx 24.25 x 28.5" MUST SHIP FOLDED ***Disclaimer on old/vintage/antique books/paper and the like: Some wear from age, use and storage which may or may not include some, none or all of the following: writing/personalized notes on inside covers and title pages(or notes on pages in the case of songbooks and sheet Music), small tears, creasing, etc.... all typical Vintage and antique book wear. Opposite side may have images or printing related to or unrelated to item shown. See top of description for any outstanding flaws.