Marbles Identification and Price GuideMore than 500 color photos display marbles of all types in this informative, highly popular, revised guide. Most of these photos, over 400, are new to this edition and the text is entirely rewritten. Covered in this reliable guide that has stood the test of time are handmade and machine made marbles of all types, including Indians, Aggies, Steelies, transitionals, M. F. Christensen & Son, Akro Agate, and more every major category of marble is