Which ancient civilization pioneered the concept of 'brand seals' - distinctive markings on pottery that identified specific workshops or merchants, functioning similarly to modern logos?

Before modern retail, ancient civilizations developed sophisticated trading systems with recognizable branding techniques. From distinctive amphora designs in Greece to standardized weights in Mesopotamia, ancient merchants understood product differentiation and consumer psychology. This poll explores how ancient civilizations used early marketing and 'branding' techniques that would be recognizable to modern retail professionals.

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Roman Empire - with 'stamped' pottery marks identifying production centers and quality levels
Mesopotamia - with cylinder seals used by merchants to mark their goods
Ancient Greece - with potter's marks that became recognized symbols of quality and origin
Ancient Egypt - with hieroglyphic seals denoting royal workshops and approved merchants