Contents of the Collection The Kirk Knutson Spyplane Scrapbook is comprised of assorted clippings and articles about various aircraft used for surveillance, circa 1950s-1960s. The materials are from various newspapers and magazines and cover aircraft such as the Lockheed U-2, Lockheed SR-71 Blackbird, and Lockheed YF-12. Lockheed U-2 Pilot Marty Knudson is also mentioned in a couple of clippings.Most of the material is affixed to the pages with glue, tape or staples, but some are loose. There are no captions...