... saying that - I can't work out how it would press out a burger if there was a cover on the base ... It's a superb piece of kitchenalia and an early example of the Italian manual burger press made by Milanese company Albertini. A little research shows they produced a number of different models over the years - so you could build up quite an impressive display shelf. Fill the base with the meat mixture and push the spring-loaded handle to pop out your burger! About 12cm high and your patties would be about 9 x 2cm. Thanks for looking and any questions, please ask.