Which ancient civilization first used standardized 'merchant seals' as an early form of commercial branding to authenticate products and guarantee their quality?

Before corporate logos became digital assets, ancient civilizations had their own sophisticated systems of commercial branding. From merchant seals in Mesopotamia to potter's marks in Ancient Greece, visual identification systems helped consumers recognize quality and origin of goods in marketplaces across the ancient world. Test your knowledge about how our ancestors approached what we now call 'brand strategy' and visual identity in commercial contexts thousands of years ago.

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Mesopotamian (circa 3500 BCE), who created cylinder seals to mark ownership and authenticity of trade goods
Ancient Egyptian (circa 3000 BCE), who used cartouche symbols on exported pottery and papyrus goods
Indus Valley (circa 2600 BCE), who developed square stamp seals for merchant guilds and trading houses
Ancient Chinese (circa 1600 BCE), who used bronze chops with family merchant marks on silk and pottery