"The Ama-gi is an ancient Sumerian cuneiform word meaning 'freedom'. It is believed to be the first instance of humans writing that concept down. The Ama-gi symbol is popular with anarcho-capitalists." -- Vroman
Here's an alternative rendering from [Matt Apple]?:
Commentary from Russell Whitaker:
The Ama-gi characters have been used for decades by [The Liberty Fund Inc.] as the design motif for the endpapers of books in the LibertyClassics? publishing imprint.