From John Stanley Antique Tools -

This listing is for a very nice little used Maine river drivers hooked pick pole or pike pole end.  This is the socket type and has the twisted point as shown. Measures 8 3/4" long with a 1 5/16" top opening. Nice condition. Unmarked. Painted an attractive flat black. These hooked ends are getting harder for us to find. You may want to check out the other pick / pike pole ends we have listed.  We will gladly combine items to save on your shipping costs.