The lot contains "Practical Mechanics Journal" Volumes 1 through 6. Each is signed "Sam Colt" inside the cover and/or on the flyleaf suggesting the books came from Colt's personal library. Other books are known double signed in similar fashion, and the signatures are similar and match other examples of items signed by Samuel Colt, including linking the "m" to the "C." Colt's patents are discussed in some of the volumes.