Smaller cartridge.
But excuse me, why would the letterhead of this thing be in English?
That's a possible objection to legitimacy, but it wouldn't really surprise me to see a lot of stationary headings for global entities in English as well as the local language. I am assuming that the corresponding Arabic heading is on the right (can't read Arabic). I would guess that creating a fake Arabic document with a heading in English is a mistake the Israelis would not make.
You may have forgotten that these groups take credit for their action with press releases to the media.