Post bound black buckram album measuring 12 x 17 inches (oblong), containing five original architectural drawings, one blueprint, and three original architect's renderings in color of the outside of the building and two of its interior spaces (the lobby and roof garden). At the front is an oversized reproduction of a letter dated August 11, 1922, from the Title Insurance & Trust Company of Los Angeles, agreeing to administer a trust related to the sale of office space in the building. All of these items are interleaved with black paper and are in very good condition. The Westlake Professional Building (now Macarthur Park Medical Plaza, 2007 Wilshire Blvd) was designed by San Jose architect Charles S. McKenzie for a group of investors calling themselves the Wholesale Properties Corporation. The structural engineers were L.A.-based Noice & Merrill, and the contractors were Wallace & Bush. According to the 2009 Intensive Survey of the Westlake Recovery Redevelopment Area, the building was "one of the earliest extensions of the medical community to Wilshire Boulevard" and "had special amenities for medical professionals, including gas, electric, and vacuum outlets in each suite, circulating ice water, and compressed air." A 1923 issue of Building and Engineering News reports the cost of construction as $350,000. The hand-drawn architectural renderings in particular offer a unique record of the original vision for this building, which has been a mainstay of the Los Angeles medical community for nearly a century.