Writing on bottom states, "US Navy Yard, SC. August 12, 1943. Test Plates with sprayed galvanized coatings. After fifteen months exposure to inland atmospheric conditions. Full size image (front of plate). File 8-12-43-5."
Writing on bottom states, "1831-41 US Navy Yard, Charleston, SC. December 20, 1941. Dual Launching USS Beatty (DD640) and USS Tillman (DD 641) Mr. John Jennings presenting pledges of 12,000 yard employees to purchase Defense Bonds to Rear Admiral Allen. File 11965."
Under tab, "Shop 980" Note states, "SAND SLINGER - Arthur Martin, molder, operates machine capable of providing and ramming sand at speeds to 1,000 pounds per minute. With a 19 foot operating radius fully extended, it can be raised to 5 feet 6 inches or lowered to about 2 feet 6 inches. 12 May 1961."