4 Antiques,Collectibles Book Collecting Paper Money Bonds,American Pocket Watche

The Complete Guide To American Pocket Watches Updated & Revised 1986

Colin Narbeth, Robin Hendy and Christopher Stocker Collecting Paper Money and Bonds

The world most accurate Antiques, Collectibles and other Treasures Price Guide by Tony Hyman 1989

The world most accurate Antiques, Collectibles and other Treasures Price Guide by Tony Hyman 2001