Rex Hacksaw "Six-and-a-half M", 7.5", 10", 12" single-speed and 12" two-speed. Includes two very detailed and well-illustrated sales and specification catalogues for the Models 6-and-one-half M and the 7.5-inch and 10-inch models together with a two-page guide to the Automatic Blade Relief Action and "Instructions for Clearing an Airlock", two sales sheets for the 12-inch single and two-speed models and one for the "Junior" Model.