Vajra Humkara (Tib.: dor je hung dze).
"Humkara, black [with] one face and two hands. Holding a vajra and bell to the heart in his own gesture. Having slightly bared fangs and three eyes. Yellow hair bristling upwards. Adorned with jewels and snakes. Having a lower garment of tiger skin. Standing in a manner with the left leg extended subduing Bhairava." (Konchog Lhundrub, 1497-1557).
Jeff Watt, 6-2006