2. Street Improvement District #2007-1

ATTACHMENT 2 UNITED STATES OF AMERICA STATE OF NORTH DAKOTA COUNTY OF CASS REFUNDING IMPROVEMENT BONDS OF 2007 Registered Number Registered Dollars INTEREST RATE MATURITY DATE OF ORIGINAL ISSUE CUSIP October 1, 2007 REGISTERED OWNER: PRINCIPAL AMOUNT: DOLLARS KNOW ALL MEN BY THESE PRESENTS that the County of Cass, North Dakota, (the "Issuer") acknowledges itself to be specially indebted and for value received promises to pay to the registered owner specified above or registered assigns, the principal amount specified above, but only from its 2007 Refunding Improvement Bonds of 2007 Bond Fund (the "Bond Fund") on the maturity date specified above, wi th interest thereon from the date hereof at the annual rate specified above, payable on May 1 and November 1 in each year, commencing May 1, 2008, to the holder of record on the close of the 15th day (whether or not a business day) of the immediately preceding month, all subject to the provisions referred to herein with respect to the redemption of the principal of this Bond before maturity. The interest hereon and, upon presentation and surrender hereof, the principal hereof are payable in lawful money of the United States of America by check or draft by Starion Bond Services as Paying Agent, or its successor. This Bond is one of an issue in the aggregate principal amount of $365,000 all of like date and tenor except as to serial number, maturity date, interest rate and redemption privilege, issued, pursuant to the Resolution adopted by the governing body of the Issuer for the purpose of refunding a like principal amount of valid outstanding special improvement warrants drawn on the funds of improvement districts heretofore duly created by the Issuer for the -13-