The JC Higgins Model 10 is just the most famous member of an entire family of mid-20th Century bolt action shotguns sold under several different brand names. In addition to the Model 10, these include the JC Higgins Model 11; the Sears Models 105-20, 105-21, and 14; The Harrington and Richardson Models 120, 121, 348, 349, and 351; The High Standard Model 514; and the Kroydon Model 124. This volume covers the history, operation, and maintenance of the entire family.