A - "The Instructor Series of Illustrated Units No. 27 The Post Office", 7pgs. Rectangular booklet by Katherine L. Julian. Contains b/w photos (cover + pg. 7) relating to the post office. Text designed for primary, middle, and upper education. Subjects include how the post office works, the history of the post office and the importance of stamps. Subjects are subdivided and contain discussion questions and activities. B - A Portfolio of Pictures - Post Office, 4-fold paper with 23 b/w photos regarding the post office Color: WH