This is an antique Raphael Tuck postcard, in the artistic series, that has been turned into an advertisement for the Chicoree Arlatte company, "the premiere French brand" of coffee. This series is hard to find and especially rare in such unused mint condition. The undivided back tells us it was printed in 1903 or earlier. The courtesan in her green dress and fancy hat is beautiful and dainty. The gold paint accents are plentiful and detailed as the photos show. This card is simply superlative in every way. Size: about 3.5 by 5.5 inches.
I have two cards available in this series. The other is a courtesan in red.