Under tab, "Shop 931" Note states, "New Machine - Machinist W. R. McClendon demonstrates how a piece of broken tap can be removed from a valve flange through the use of the Electro Arc Metal Disintegrator recently installed in the Shipyard's Machine Shop. By the arcing process the broken tap is disintegrated, enabling the operator to lift the pieces without disassembly of the valve. May 61." Note on back states, "Navy News 24 1/2 ems May 28 issue (129546)"
