Original four-volume lot of Polaris yearbooks from the United States Air Force Academy. A great consecutive run covering the mid-1970s era of the U. These substantial hardcover annuals include cadet life, academy events, athletics, military training, photographs, class portraits, and period military/Air Force history. Condition: Pre-owned vintage condition. The books have visible exterior shelf wear consistent with age and use, including scuffing, rubbed/chipped corners and spine ends, cover wear, and some page-edge toning/soiling. Bindings appear intact from exterior inspection. Included: Four original hardcover Polaris United States Air Force Academy yearbooks, dated 1973, 1974, 1975, and 1976 only.