Which ancient civilization was known for 'quality control' stamps on their trade goods, featuring symbols that functioned similarly to modern logos and brand identifiers?

Before modern logos and brand identities, ancient civilizations utilized powerful symbols to represent their cultures, rulers, and goods in marketplaces. These symbols functioned much like today's corporate logos - instantly recognizable markers that communicated value, origin, and authority. This poll explores how ancient civilizations utilized early 'branding' concepts that still influence modern marketing principles.

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Ancient Rome, with imperial eagle stamps on exported pottery and wine amphoras
Ancient Mesopotamia, with cylinder seals used by merchants to mark ownership and authenticity
Ancient Egypt, with pharaonic cartouches stamped on goods from royal workshops
Ancient Greece, with city-state emblems marking olive oil and wine exports