I believe this to be a Hayes wire wheel hub. I have heard that these usually have the key way beat out of them. Someone has already repaired this by welding in a new center. The repair looks top notch. The hub has some pitting and the pins would need to be repaired of replaced, but I think this hub has some more life in it.
$225 obo plus shipping
Call Daniel 831-278-2742
Daniel, Your hub is not like any Hayes hub with which I am familiar. The brake drum is riveted to the hub and the inner spokes are laced through the drum. The hubcap thread is internal.
Maybe yours is much earlier than any I have seen.
Allan from down under.
I could very well be wrong on the ID
I just did a google search for Dayton and I think you are right. It looks exactly like a Dayton hub.
Left hand threads. $200 plus shipping
$175 plus shipping