Abstract: A machine for embossing cards or plates is provided with features which give it the capability of handling and feeding a wide variety of plate sizes both in length and height, and also make it possible to effectively process pieces which are of many unusual non-rectangular shapes. A trackway made up of several segments is arranged to have a rail of each segment readily adjustable towards and away from the other rail. Special hopper and receiver equipment is made available which can accept plates of different lengths by merely adjusting fixed side rails which cooperate with trays which are substantially standardized for the novel system. The plate holding means at the embossing station is so constructed that it can effect its retention function without inhibiting embossment on the margins or other portions of the plate regardless of its unusual size or shape limitations. Slightly modified alternate tray constructions are provided for easily accommodating, feeding and storing plates of more unusual outline.