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If the Chinese or Japanese, and what it means?

I am old pottery for a friend who wants to sell some researching. Unfortunately, the brands are in what I take to be Chinese or Japanese. I do not have either and found nothing on the net that corresponds to these symbols, I do not even know whether they are on the law. Can someone help me by telling me what it is and what it means, please. This is a link to an image of the brands. http://i985.photobucket.com/albums/ae338/compus_mentis/geetha% Thanks 201/geetha2.jpg

Flipped 90 degrees counterclockwise, seem to be the two big letters on 许 特 in Simplified Chinese. However, are the smaller characters either too small to find out, or they are just random scribbles, although the third character looks like from the bottom up 立 … and but not quite.

Pottery Technique: A Never Old Traditional Chinese Art Clip1/3