A munitions worker puts the final touches to the gleaming steel barrel of a 25-pounder field gun in a large Sydney factory where the work of assembly is being rushed through as fast as the 4,000 parts come to hand. Production of these guns is a triumph for Australian enterprise, calls for accuracy to I/l0,000th. part of an inch. March 24, 1942.;A munitions worker puts the final touches to the gleaming steel barrel of a 25-pounder field gun in a large Sydney factory where the work of assembly is