Which ancient civilization created the earliest known form of 'brand logo' by stamping distinctive symbols on pottery to identify the workshop of origin?

Long before modern marketing departments existed, ancient civilizations created powerful symbols and 'brands' that represented their cultures, values, and products. These early forms of brand identity helped distinguish goods in ancient marketplaces, marked items of religious significance, and established visual languages that some cultures still recognize today. This trivia question explores how ancient civilizations approached what we now call 'logo design' and visual branding.

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Mesopotamia (circa 3500 BCE), with cylindrical seals used to mark clay vessels
Ancient Egypt (circa 3100 BCE), with cartouches identifying royal pottery makers
Ancient China (circa 1700 BCE), with dynasty marks stamped on bronze vessels
Ancient Greece (circa 750 BCE), with amphora maker's marks indicating city-state origin