Bubble-blowing Girl with a Vanitas Still Life; Bubble-blowing girl at a vanitas still life consisting of books; a violin and a skull; bubble-blowing (children's games and plays); (children or putti) blowing bubbles; 'Homo Bulla'; scene symbolizing 'Vanitas'; skull as symbol or 'Vanitas'; (personifications of) 'Vanitas'; the vanity of human life; Fragilit?humana; Fugacit?delle grandezze & della gloria mondana; Meditatione della morte; Opera vana; Piacere vano; Vana gloria; Vanit?(Ripa); violin; fiddle; Adriaen van der Werff (manner of); 1680 - 1775; copper (metal); oil paint (paint); h 15 cm x w 11.5 cm h 33.2 cm x w 29.5 cm x d 3 cm