The Fred Koch Fairchild F27 and Convair CV 240 Notebooks is a small collection of four (4) spiral-bound notebooks of handwritten notes related to these aircraft, circa 1940s-1966. Three (3) notebooks are about the F-27/F-227, which all have Fred Koch's name written on the outside, and one (1) is about the Convair 240. The Convair notebook does not have Koch's name so it is uncertain that it was his, though likely based on the handwriting.