(Papua New Guinea)
15.0cm length across arch:
0 - Whole; 15cm (5 7/8"); aft (open) end
0 - Whole; 1.7cm (11/16"); fore (open) end
0 - Whole; 1.6cm (5/8")
'Smoking and Tobacco Pipes in New Guinea' by AC Haddon, pg. 1-278., Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 06 Jun 1946, 06 Jun 1946.