a.k.a. OMC Ku Tiki Mug
This Ku mug is unglazed tan, with a brown glazed rim and interior. Back is marked "Aku Aku" in vertical letters down back, in black. The Aku Aku was a Polynesian restaurant inside the Stardust casino, at the north end of the Las Vegas strip. The restaurant opened in 1960, and closed in 1980.