http://maa.cam.ac.uk/wordie/ 1946.446.Devil's Thumb Island, Greenland.A spear thrower is used to increase the power of the spear. The Inuit use several different types of harpoons for hunting animals. The size of the harpoon depends on the size of the prey. 147.4 cm x 5 cm (Diameter)..Source: 1934 Wordie Arctic Expedition. http://maa.cam.ac.uk/wordie/images/169.jpg http://maa.cam.ac.uk/wordie/expedition/section4/hunting/162/ http://maa.cam.ac.uk/wordie/#comments This detail photo is of a bird dart, not a spear thrower as stated in the description. A spear thrower is used to throw it, but is not in this photo. If the iron point of the dart misses the bird, its wings will probably be caught in the three bone parts illustrated. Sun, 23 Sep 2007 16:06:19 GMT comment_14 http://maa.cam.ac.uk/wordie/#comments This is a bird dart not a spear thrower. It would have been used in conjunction with a spear thrower or norsaq. Fri, 16 Nov 2007 18:11:59 GMT comment_18