: Inspect the physical stamping, engraving, or original packaging badge on the item. Mistaking an "O" for a "0" or an "I" for a "1" is the most common cause of procurement errors.
, tucked three miles beneath the Atlantic surface, everything had a code. The oxygen scrubbers were Series-A. The hull reinforcements were Grade-9. But the black box recovered from the Mariana Trench—the one that hummed at a frequency that made the crew’s teeth ache—was simply labeled juq103