United States Patent Keys by Don Stewart (Key Collectors Int'l) PB 1985 For Sale

"United States Patent Keys" by Don Stewart is a vintage paperback reference book published in 1985 by The Locksmith Publishing Corp. The book, part of the Key Collectors International series, focuses on the topic of keys, key collecting, and locksmithing. Originally written in English, this nonfiction work is intended for adult readers interested in the history and practices of keys in the United States. With a nostalgic feel for the 1980s era, this book serves as a valuable resource for those interested in the art and craftsmanship of creating and collecting keys.