A portrait thought to have been by an unknown German artist from the 19th Century has been identified as a work by Leonardo da Vinci. If true, it is a rare find indeed, the first additional work to be assigned to Leonardo in over 100 years. The rendering, which has been in the hands of private collectors, is in ink and colored chalks. Though some things can be determined about the work by it’s style, such as the left-handedness of the artist, it was not attributed to Da Vinci, or any of his contemporaries. Because of it’s more modern approach (and despite the Renaissance dress of the subject, a young girl shown in profile) it was thought to fit in with stylistic characteristics of a different time and place. The attribution is being made on the basis of a fingerprint, found in the upper left edge of the canvas (image above, top right), that has been analyzed and matched to another fingerprint in one of the master’s other works. (Leonardo, like many artists, got his hands into his work and left fingerprints in a number of paintings.)