Davenport’s Milko: vanishing a glass of milk
The magician takes a hat and places a glass of milk in it. The magician then shows an empty nickel plated tube, takes the glass out of the hat and places the tube over the glass. On turning the tube upside down the audience expect the milk to pour out, but the tube is shown to be empty. The glass has vanished, only to be found back in the hat. To protect the secret, the photograph does not include all the apparatus for this effect.