36-Piece Steel Stamp Sets (USA) Sets are combination letter (A to Z plus a period) and numerals (0 to 8; 6 is used both for that number and for 9). Hold with hand and strike with hammer, or use several in a type holder (sold separately). Stamps have crowned striking ends that provide full force to stamp center. Sets packaged in durable wooden storage cases. Two styles are available, machine made or heavy-duty. Made in USA.