Dual Flush in Egypt

This dual flush toilet photo was taken in Egypt and sent in by Fulbright Scholar Alicia Harley (formerly of the Harvard Office for Sustainability). We don't know / can't read the make, model or flow, but it looks like a tank-type toilet (gravity fed) with the tank in the wall between the wall studs. We assume the larger button gives a half flush (probably a 6 liter "solid" flush and a 3 liter "liquid" flush). Alicia is in Egypt working on the issue of access to safe drinking water, so it is good to see they're reducing the amount of potable water used in their toilets. Thanks Alicia