The Secret Marks on U.S. Dollar Bills: What Chop Marks Reveal About a Global Currency Journey

Hidden on many U.S. dollar bills are mysterious “chop marks” — small stamps made by currency traders and merchants around the world.

These marks trace the bill’s path through international trade, showing where it’s been accepted and verified, especially in Asian markets.

The discovery sheds light on the dollar’s role as the world’s dominant currency and reveals a fascinating story of global commerce and trust.