"COPPER ALLOY CASTINGS,ALLOY C5,SPEC QQ-C-390; FINISH 4.1 FINISH 4.10,CAST SURFACES,FINISH 21.3 OF MIL-STD-171 BAKE PRIMER AND TOP COAT; COLOR WHITE NO 27875 OF FED-STD-595,ENGRAVED LINE TO BE FILLED WITH FINISH 30.1.2 OF MIL-STD-171,COLOR BLACK NO 27038 OF FED-STD-595"