Check the listing for details. Ertan Automatic Numbering Machine Model 188 Chrome Stamp. Condition: Used. Listed at 22.95 USD. This Ertan Automatic Numbering Machine Model 188 Chrome Stamp is a reliable and efficient tool for any printing and graphic arts business. With its sturdy construction and efficient design, this machine can easily handle all your numbering needs. Made in the United States with high-quality materials, this machine is built to last and deliver accurate and consistent results. Featuring a brand name of Ertan and a model number of 188, this numbering machine is sure to meet your expectations. It is perfect for businesses that deal with numbering machines, bindery and finishing equipment, printing and graphic arts, and other related industries. This machine is an essential tool for those who want to streamline their operations and increase productivity.