'Tamba' war spear from Mali. Standard equipment for Mandinka 'sofa' infantry troops. (See the Wikipedia entry for the Mali Empire for more details).
length: 61"
head: 22 1/2"
blade: 11 1/2"
blade width: 1 3/8"
socket: 11"
'butt spike': 11 1/2"
weight: 1 lb 11.2 oz