Protonic Inversal Axe

The  is a weapon in the Fallout: New Vegas add-on Old World Blues.

Characteristics
It's a special version of the proton axe, having a dark blue-violet blade, white-pinkish capacitors and a brownish handle.

Locations

 * Found on Test subject 1 in The Cuckoo's Nest.
 * Found on Number 27, a ghoul near Little Yangtze.