What specific feature distinguished the White Coke cap from the standard red crown cap?

Answer

It was white adorned with a red star

The packaging of White Coke was meticulously designed to act as an internal signal of its exclusive nature while providing camouflage externally. While the liquid was clear, the bottle itself was modified, and the cap was critically important. Instead of the iconic red crown cap universally associated with Coca-Cola, the White Coke featured a white cap upon which a red star was prominently displayed. This specific combination—straight-sided bottle mimicking vodka, paired with the white cap and red star—served as the visual signifier to those familiar with the arrangement that this specific beverage was the specially commissioned product intended only for the Marshal, transforming an otherwise standard item into a highly exclusive artifact.

What specific feature distinguished the White Coke cap from the standard red crown cap?
drugDefinitionProductsubstancecoke