Tip To Light Variable Message

U.S. Patent 5,762,378

A word, such as "$AFE" is ghost engraved on a special tamper resistant material that, once signed or printed on, cannot be easily altered. If an attempt is made to remove the "$AFE" strip, the words "void" will appear in the background. This feature works especially well in the amount field when amount alteration is the concern. Verification is accomplished by tipping to light.



AlterSafe - "Tip To Light Variable Message"