An aerial view of the original headquarters of the Ensign-Bickford Company, now the Ensign-Bickford Aerospace and Defense Company, circa 1931. They... Show moreAn aerial view of the original headquarters of the Ensign-Bickford Company, now the Ensign-Bickford Aerospace and Defense Company, circa 1931. They were, at the time, a manufacturer of safety fuse for mining. Show less