Exhibit 1.1(b) Nuveen Unit Trusts, Series 81 Trust Indenture and Agreement Dated: February 17, 2000 This Trust Indenture and Agreement by and between John Nuveen & Co. Incorporated, as Depositor and The Chase Manhattan Bank, as Trustee, sets forth...Indenture and Agreement • February 17th, 2000 • Nuveen Unit Trusts Series 81
