Which ancient civilization invented the world's first known form of retail branding, using distinctive pottery seals to guarantee product authenticity and quality?

While modern retail seems like a recent innovation, ancient civilizations had sophisticated marketplace strategies that would impress today's business consultants. From branded products to consumer psychology tactics, ancient merchants were remarkably advanced in their approach to commerce. This trivia explores one fascinating aspect of ancient retail innovation that continues to influence modern shopping experiences today.

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Ancient Rome, with their 'ex officina' (from the workshop of) pottery stamps that indicated premium craftsmanship
Mesopotamia, where merchants stamped clay tablets with unique cylinder seals to guarantee the origin and quality of traded goods
Ancient Egypt, where pharaonic cartouches on goods indicated royal approval and premium quality
Ancient China, where Han Dynasty silk producers used distinctive wax seals to mark authentic imperial-grade textiles