New Method Steel Stamps Type Retainers offer the convenience and flexibility to change type and marking impressions without investing in quantities of roll dies.  New Method has four different types of retainers. The 541, the double 541, the 542 which is larger than the 541 and the 544 (most often used with Swiss type machines) which is smaller than the 541. Type for these retainers is offered as individual pieces or can be developed as Logo segments which may have multiple characters on a single blank.