EXHIBIT 4.1 OLD SECOND BANCORP, INC.Old Second Bancorp Inc • May 20th, 2003 • State commercial banks • Illinois
Company FiledMay 20th, 2003 Industry Jurisdiction
M&I Marshall & Ilsley BankLetter Agreement • May 20th, 2003 • Old Second Bancorp Inc • State commercial banks • Wisconsin
Contract Type FiledMay 20th, 2003 Company Industry JurisdictionThis Letter Agreement (the "Agreement") is made and entered into as of the 1st day of May, 2003, by and between Old Second Bancorp, Inc. (the "Customer") and M&I Marshall & Ilsley Bank (the "Lender").