Whistleblower (The Office) fourth appearance on the show, after first appearing in "Sabre". Zach Woods made his ninth appearance on the show. While talking with his real estate agent on his cellphone, Dwight states that the office park is 1725 Slough Avenue. "Slough" is a reference to the UK edition of "The Office" which is set in Slough, United Kingdom. In its original American broadcast, "Whistleblower" was viewed by an estimated 6.60 million viewers with a 3.4 rating/10% share in the 18–49 demographic coming second in its timeslot after the season finale of "Grey's Anatomy", receiving the same rating as last week's episode,
United States Post Office–Lancaster Main United States Post Office–Lancaster Main The U.S. Post Office–Lancaster Main is a historic post office at 120 Main Street in Lancaster, New Hampshire. Built in 1935, it is one of the few examples of Art Deco architecture in northern New Hampshire. The building was listed on the National Register of Historic Places in 1986. Lancaster's main post office stands just north of the town's central business district, amid a cluster of civic and religious buildings. It is set close to the street at the southwest corner of Main and School Streets, giving it a visually commanding location in the town