This is a beautiful grouping of 5 art postcards, all featuring children, produced by Stengel & Co. of Dresden, Germany, and labeled for distribution across Europe. These cards show some age and soiling. One has a tack hole. But the colors are rich and the cardstock thick and hardy. In fact, this is how the Metropolitan Postcard Club of New York describes the Stengel company: "Having expanded into chromolithography, they became a major publisher and printer of fine art cards in their World’s Galleries series. Their chromolithographs employed fourteen to twenty-two litho-stones to achieve subtle coloration. They are possibly the finest quality postcards ever produced."
Founded by Emil Stengel and Heinrich Markert in 1885, ... "their factories were heavily damaged during World War Two, but production continued in postwar years after the firm was nationalized into the Volkerfreundschaft by the East German government. Collotype printing continued until 1991 but the Stengel name was only kept for a few years," says the New York club site. Hence, they list the dates for the Stengel company as 1885-1945. I believe the quality of these cards verifies that they were indeed printed within that time frame.
Each card is about 3.5 by 5.5 inches.