This is a fog cutter shaped mug with a Hawaiian drum look to it that is encircled with Hawaiian petroglyph images. It is also marked with the double-P logo incised on bottom for Polynesian Pottery. It’s likely that Adele Davis (who sold PP to Daga), had extra molds (so she could pour more than one at a time) and since she continued to make mugs and teach it's also likely that HB Things Hawaii obtained one of the molds as well -- since they produced an identical mug with different glazing and their own marking on the bottom. This mug is pictured on the cover of Waikiki Tiki by Phillip S. Roberts.