It looks like some sort of tamping tool to me, too. But I also wonder
if its some sort of metalworking tool....for some reason, I get this
mental image of this being used to reach into narrow spaces to provide
a backing to hammer rivets against or something. Possibly in a gutter?

How heavy is the head?

Or maybe this is a tool to turn a switch on an overhead fan, like that
mystery item from a few months back? ;-)

--humunculus