Originally accessed:
City of Seattle, Department of Neighborhoods
"According to original drawings, 'John Paul Jones and Leonard W. Bindon, Architects' designed the first five floors of this building for Pacific Telephone and Telephone and Telegraph Company during 1952. A building permit was obtained on March 15, 1953 and construction occurred between 1953 and 1954. Drawings for two additional floors were later completed by the same architects, by then known as the firm of Bindon and Jones. The construction drawings date from March 1, 1957 and the construction of the two additional floors is supposed to have been complete by 1957, according to Tax Assessor’s Property Record Cards."