This is a **WMF Cromargan moka pot (direct-fire espresso maker)**, likely a model from the 1970s-80s. It's characterized by a rounder design than current models, and it has collector's value. I have never used it myself, so it is sold as-is, with no returns. Please purchase only if you understand this. It's a type of **direct-fire espresso maker (moka pot)**. The shape is more rounded and unique than typical moka pots, but the mechanism is the same. Features: • Water is added to the container on the left (bottom). There is a metal filter at the bottom to create pressure. • A basket (filter) for coffee grounds is placed in the center. • The right side (top) has a rubber gasket and a metal filter, and the coffee extracted by steam passes through here and accumulates. The basic usage is as follows: 1. Fill the **bottom (boiler)** with water up to just below the safety valve. 2. Fill the filter basket with medium-ground to fine-ground coffee, and level it lightly (do not tamp). 3. Screw the top on tightly. 4. Heat over medium to low heat. The steam pressure forces the water through the coffee grounds, and the coffee accumulates in the top. 5. Stop heating when the extraction sound changes to "pssh pssh."