Updated:
Dec 19, 2012 
Zeus
▲ (Bowl) U.S. PAT. 2158897 (Stem top) ◊ * Zeus ◊ (Stem bottom) Made in U.S.A.
▲ (Left side) ** PAT. 2158827
This pipe is intended to recieve two halves of a cigarette acting as filters. (described in the document below).
Zhan
Ping
Dalian 
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▲ (Underside)
― P. ZHAN ―
Artisan: Ping Zhan (born 1979) is photographer
and software engineer. He started making pipes in 2011.