Heraldry and
Insignia of the California National Guard
730th Antiaircraft
Artillery Battalion
Distinctive Unit
Insignia
Design Approved: Approved 8 December 1953
Symbolism: The shield is red for Artillery.
The ship an the canton were taken from the coat od arms of the
old 251st Coast Artillery Regiment and commemorate the descent
from that organization. The ship is representative of that of
Don Juan Rodriguez Cabrillio, a Portuguese explorer who discovered
San Diego Harbor