a.k.a. Trader Vic's PNG Ramu Mug, Trader Vic's Papua New Guinea Ramu Mug
From Trader Vic's:
"Designed by Trader Vic's legend, Javier Del Campo, the Ramu mug is part of our Papua New Guinea mug collection. This mug holds 24 OZ. The inspiration for this design comes from the Ramu river, where the Bosmun people live."
There is also a mini mug version of this same design.