If you haven’t visited the Noun Project yet, take a moment and drop by.
It’s a great initiative to provide open source icons. All you have to do is provide attribution according to the Creative Commons license.
I noticed recently the addition of a translations icon.
I believe Microsoft was the first company to develop a translations icon along these lines, which was used as part of Microsoft Office.
Here’s an icon currently in use on the Bing Translator page:
Google quickly followed along with its Google Translate icon, shown here:
(Contact me if there is another company that is using a variation of this translation icon.)
To be clear, I would NOT use this icon as part of a global gateway.
This icon is not about finding localized content — it’s about getting content translated (usually via machine translation).
For the global gateway, I recommend this open source icon:
For more on global gateways, check out The Art of the Global Gateway.
UPDATE: Here’s the machine translation icon used by Yamagata Europe: