Today I mused about the historic origins of Israel's electric system. Since the territory was a British mandate until 1949, I'd suspect considerable British influence and that made me wonder whether the original flat-pin Israeli plug could be a slimmed-down version of BS546 5A. That doesn't seem to be the case though, the Israeli plug is more closely related to Schuko than to BS546, especially the offset of the earth pin is much smaller on the Israeli plug. I'd love to find out more about the history of that plug! There is some ressemblance to the old French 6 A plug but not really conclusive.
