The 250 famous paintings in Masterpiece Cards are faithfully reproduced on art history cards. The Cards cover Renaissance art to the 1960s - over five centuries - with all the famous paintings in between. Like this one:

Willem Kalf. Still Life with Lobster, Drinking Horn and Glasses. Oil on canvas, 1653. 34" x 40 1/4". National Gallery, London.
What is this Dutch painter conveying? What's the significance of the objects in this still life painting?