Well, for those that may be interested, here are the results of my Single Six Letters Requests. Enjoy. By the way, guessing the RSS9X is a 9 1/2" Barrel... what happened to the missing 3" or so?!?!
Produced in May 1957; Designated as a Model Single Six .22 lr; Shipped to Stoeger Arms Corp in Long Island City, NY in May 1957
Produced in April 1965; Designated as a Model RSS5X .22lr/.22 wmr; Shipped to George Lawrence Company, Portland, Oregon in April 1965
Produced in June 1968; Designated as a Model RSS5X .22 lr/.22 wmr; Shipped to Williams Gun Sight Co., Davidson, Michigan in June 1968
Produced in December 1968; Designated as a Model RSS9X .22lr/.22 wmr; Shipped to William Van Hoogenhuyze Hardware Co., San Antonio, Texas in December 1968
Produced in October 1969; Designated as a Model RSS5X .22 lr/.22wmr; Shipped to Washington Hardware Co., Tacoma, Washington in October 1969
Produced in October 1969; Designated as a Model RSSMX .22 lr/.22 wmr; Shipped to Seattle Hardware Co., Seattle, Washington in October 1969
Produced in October 1972; Designated as a Model SC6 .22 lr/.22 wmr; American Wholesale Hardware Co., Long Beach, California in October 1972
Produced in May 1957; Designated as a Model Single Six .22 lr; Shipped to Stoeger Arms Corp in Long Island City, NY in May 1957
Produced in April 1965; Designated as a Model RSS5X .22lr/.22 wmr; Shipped to George Lawrence Company, Portland, Oregon in April 1965
Produced in June 1968; Designated as a Model RSS5X .22 lr/.22 wmr; Shipped to Williams Gun Sight Co., Davidson, Michigan in June 1968
Produced in December 1968; Designated as a Model RSS9X .22lr/.22 wmr; Shipped to William Van Hoogenhuyze Hardware Co., San Antonio, Texas in December 1968
Produced in October 1969; Designated as a Model RSS5X .22 lr/.22wmr; Shipped to Washington Hardware Co., Tacoma, Washington in October 1969
Produced in October 1969; Designated as a Model RSSMX .22 lr/.22 wmr; Shipped to Seattle Hardware Co., Seattle, Washington in October 1969
Produced in October 1972; Designated as a Model SC6 .22 lr/.22 wmr; American Wholesale Hardware Co., Long Beach, California in October 1972