farb man
n.β Β«Farb manβsame as switch man; When a customer goes in a rear room to obtain the article he has purchased, the farb man tries to sell a more expensive article.Β» ββJewelry Auctioneersβ Jargon Obtained From Auctioneers and Jewelers on 42nd Street and 14th Street” by Hatch in New York City Lexicon of Trade Jargon , 1938-39. (source: Double-Tongued Dictionary)