Knorr, Georg Wolfgang.
Engraving / etching, handcolored, plate mark 12 1/2 x 7 3/4 inches on sheet 16 1/4 x 9 3/4 inches. Old tape to verso of sheet (outside plate mark area) which has discolored a 3/4 inch section of the left margin. A bold image of a Crown imperial or Kaiser's Crown (Fritillaria imperialis) from Georg Wolfgang Knorr's "Thesaurus Rei Herbariae Hortensisque Universalis" which was published in Nuremberg in 1780. At lower left is the title in Latin, at lower right in German. (Dunthorne, "Fruit and Flower Prints" #172.). Item #48540