This is a useful utilitarian French meat press for the preparation of dishes such as pressed duck .  It's  made of heavy cast metal.  It is an old kitchen utensil with signs of use.  It works by placing the meat into the press and screwing down the screw thread and the juices are filtered through metal sieve inserts.   
 
Imprinted on the metal - BTE SGDG PRESSE A.PETIT DEPOSSE
 
A great piece of vintage kitchenalia from the early 1900's 
 
Size: Base 9cm x height screwed down 15cm