Which ancient civilization first used consistent merchant symbols (proto-logos) on pottery that indicated specific workshops or artisans?

Before modern logos and brand identities, ancient civilizations had their own ways of marking products and establishing merchant identities. These early forms of branding helped customers identify authentic goods, trace their origins, and establish trust in marketplaces from Rome to Mesopotamia. Test your knowledge about how ancient merchants branded their wares and created the foundation for today's logo-driven world!

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Ancient Egypt, with distinctive cartouche-based marks
Ancient Greece, with potter's marks on amphoras and vessels
Mesopotamia, with cylinder seal impressions on clay containers
Roman Empire, with maker's marks stamped on terra cotta products