Exhibit 1.1(b) Nuveen Unit Trusts, Series 57 Trust Indenture and Agreement Dated: August 16, 1999 This Trust Indenture and Agreement by and between John Nuveen & Co. Incorporated, as Depositor and The Chase Manhattan Bank, as Trustee, sets forth...Nuveen Unit Trusts Series 57 • August 16th, 1999
