Need help with the maker of these broadheads. Thanks

They are on arrows made by Madbury Arrow Works. That probably doesn't help. I didn't know if maybe they used a perticular head on their arrows. Thought someone may be more familiar with them than I am.

Original Zephyr Siroccos made by Brad Winger in Kansas. Before being sold to Mark Horne.
Tough, tough head.

Looking at the taper length on the field points I now understand why some guys can't keep points on their arrows when pulling from a target!

Thanks for the input raghorn. They were in with some stuff I traded for.  I knew someone knew more about em than I did. Thanks again