| This is a very rare 1875 trade card by Louis Prang. Stone lithography in America reached its zenith with the work of Louis Prang who came to Boston from Germany. Prang made lithographs that used as many as 25 separate stones. Prang also was the first to add embossing and imitation brush strokes. Prang's chromolithographs were made up of intermingled solid blocks of colors placed side-by-side in small color areas creating a complete range of hues and tints. He called this technique "Crayon Chromolithography". Most of the labels produced in the 1870's used this method. |