Used lot of maps sold as shown. These copies are very well done in extremely nice binders in great condition. From what I gathered upon finding, these were a part of a book that was published about northern Michigan history. That’s all the info i have. Other paper work gave me the impression the maps were from the late 70’s or early 80’s. Please use the photos to note condition which binders are included and examples of condition of maps. Please also note all map pages are in similar condition to examples shown. Great solid usable readable condition. Thanks for looking.