Which ancient civilization pioneered the use of 'brand seals' on merchandise that included the producer's name, place of origin, and even quality guarantees?

Before modern corporations and digital logos, ancient civilizations developed sophisticated methods to mark, identify, and promote their products across vast trade networks. From Mesopotamian cylinder seals to Roman pottery stamps, these early branding systems helped establish product authenticity, origin, and quality standards. This poll explores how ancient civilizations implemented early product design and brand identity concepts that would be familiar to any modern marketing executive.

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Roman Empire, with official stamps (ex officina) on pottery, textiles, and metal goods
Ancient China, using chops (seal stamps) with merchant marks on silk, pottery, and bronze
Mesopotamia, particularly the Babylonians, with cylinder seals on commercial goods and contracts
Ancient Egypt, with hieroglyphic maker's marks on exported goods like papyrus and ceramics