Hi, here are some photos of an Optimus 100 stove. This is a collapsible, 1.75 pint capacity, paraffin ( kerosene) stove fitted with a roarer burner. A silent damper was also available but unfortunately I don't have it for this particular stove: The reserve cap for this stove, when not in use, is parked on the top of the filler cap. I think this an elegant, well designed stove. Regards, Kerophile.