Presented is an extraordinary advertising postcard sample: a rare PC760 T. R. Rose Postcard with advertising overprint on the reverse for Greenfield's Delatour Chocolates, manufactured by E. Greenfield's Sons of New York. "Overprinting" is a term commonly used to refer to the rare practice of a company taking cards already printed and adding advertising, in the form of printing or ink stamp, to allow the cards to function as an advertising vehicle at a relatively modest cost compared to creating and printing a new set. In this case, the overprint on this PC760 T. R. Rose Postcard of Jack Warner from Washington is beautifully and very elaborately printed, and advertises "The most delicious Chocolate Candies made. Greenfield’s Delatour Chocolates. Nearly 100 kinds. One of them Delatour Butterscotch Chocolates. Sounds good. Tastes better. A liberal introductory sample sent post-paid for ten cents. For Sale Everywhere. E. Greenfield’s Sons & Co. Makers of Chocolate Sponge. 44 Barclay St., New York. Established 1848." The T. R. Rose Postcard Company obviously offered this style of elaborate advertising overprinting as a special service to advertisers. Rose postcards are rare enough. A Greenfield's Chocolates advertising Rose Postcard is a virtually impossible-to-find sample; we have offered only seven others over the last fifteen years (not including the one example offered in this auction). All are extremely rare. The advertising overprint is boldly printed in brown ink. The card has even wear on the corners, light edge wear, and a small crease on the upper right. Graded FAIR 20 by SGC (submitted by REA) due to the reverse being addressed and mailed as intended. Postmarked September 20, 1909. Reserve $200. Estimate (open).