The Herbstman Collection has a companion website. To further the understand the history of the U.S. national debt, please visit
The National Debt.US ™ is a website devoted to the history of U.S. Treasury securities.
The site explains how bonds work, and teaches about the history of the national debt. It is a completely free resource for anyone interested in America's financial history, the national debt, and how the United States borrows money.