Popular practices in marketing wine: Bava Metzia 60a
Wine is always assumed to be merchandise, up for sale: Bava Metzia 66b
A popular wine market, Parvita d'Zolshefat: Tosafot Bava Metzia 73b "A'Parvita"
The situmta sign made by wine merchants on their barrels, to indicate that they are sold: Rashi Bava Metzia 74a "situmta"