1861 $1000 Twenty-year Registered Bond
Six Percent Registered Loan Specimen
This unissued specimen bond was authorized by the Loan Act of July 17th, and the Revenue Act of August 5th, 1861. At the start of the war, Congress authorized issuance of bonds and the creation of demand notes. The 1861 Act for a National Loan provided for registered and coupon bond issuance up to $250 million, and the creation of the demand notes (currency) famously nicknamed "Greenbacks." This bond was printed by the National bank Note Company.
This example is from The Joe I. Herbstman Memorial Collection of American Finance