 Complete the following phrase:  The trustees of the Baker Estate, aware that Pierce had only been with the company for five years, leased the business to him for a two-year probationary period, subject to a life interest payable annually to Mrs. Baker, widow of the owner and step-aunt to Pierce, until her death in 1891. He began manufacturing under the name and style of Walter Baker  Company. In 1856 the trustees extended the lease a further eight years, during which time Pierce began an expansion that would eventually absorb his competitors in the Lower Mills. The trustees continued the ten-year lease until 1884, when all terms under the Walter Baker will having been satisfied, the entire property is conveyed by the Trustees to Henry L. Pierce. In 1860, Pierce bought the Preston Chocolate Mill from Henry Chapin, to whom it had been sold the previous year, and in 1881, Josiah Webb sold his chocolate mill to Pierce. In 1864, the trustees of the Baker Estate renewed the lease for a second decade. This decade was decisive for Pierce, as he began to enter his chocolate in competitive exhibitions both in this country and abroad. In 1867, Bakers Chocolate and Cocoa won an award in the Paris Exposition for the quality of the product. In 1873, the company won the highest awards at the Vienna Exposition, and in 1876, at the 