Thanks to some people from other groups here are some translations for the archaic pictographs.
1) 大泉 Dà quán - Big Spring , 忠榮 Zhōng Róng - Faithful growing
2) Da Yuan 大源 - Big or Great Spring, Zhi and Rong 志榮 - aspiring to prosper
3) 大泉 [Da Quan] 'Large Coin', 志榮 [Zhi Rong] 'Ambitious (Ideal) Honor (Glory)'
So I have a real good overall idea of what the potter was trying to say. The most significant being the one for ""spring water flowing from a cave or from the mouth of a spring".