Which ancient civilization first used standardized clay seals as 'trademarks' on merchandise packaging to guarantee authenticity and prevent counterfeiting?

Before modern logos and trademarks, ancient civilizations developed sophisticated methods to distinguish their goods in bustling marketplaces. From distinctive pottery marks to unique packaging seals, these early branding techniques helped establish consumer trust and merchant reputations across vast trading networks. Test your knowledge of how ancient societies implemented product differentiation and early brand history in their commercial practices.

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Ancient Rome (stamped 'ex officina' marks)
Mesopotamia (cylinder seals from Uruk)
Ancient Egypt (cartouche-style merchant marks)
Han Dynasty China (imperial workshop stamps)