Which ancient civilization invented the world's first known branded retail products with manufacturer seals that guaranteed quality and origin to customers?

The ancient world developed sophisticated retail systems long before modern commerce. From the bustling agoras of Greece to the complex trade networks of Mesopotamia, ancient civilizations created innovative product distribution methods and retail strategies that would influence commerce for millennia. This poll explores how ancient societies approached product design and retail concepts that were remarkably advanced for their time.

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Mesopotamians, who stamped clay tablets with merchant seals to verify product authenticity around 3000 BCE
Ancient Egyptians, who marked papyrus scrolls with hieroglyphic logos to indicate royal workshop products
Romans, who stamped pottery and amphorae with maker's marks to indicate production location
Ancient Chinese, who applied silk stamps to porcelain goods as a quality guarantee system