Sweeny, James O. & Turfboer, Robert, Tempus in Nummis: v. 1 - The History and Fundamentals of Dating in Numismatics; v. 2 - The Romantic Story of Time Themes in Numism, [Aubrey, Texas] 1992, Numismatics International, 2 volumes, vii + 175 pages, xii + 254 pages, paper covers, letter-size pages, numerous images in text, ex Norman D. Nicol Library.
Estimate: 45-50 USD