In the 1960s Habicht contracted with a spanish shotgun maker to make s/s shotguns to be sold in Germany under the Habicht name. The shotguns were of good quality generally 12 ga. The guns were engraved had pistol grips and were hand checkered. The forend was a beaver tail and also hand checkered the stocks generally had a raised cheek piece. The gun had a side lock and was double triggered. Closest match today would be the Aya. Look at the proof marks on the barrel for the spanish manufactured shotguns will have Spanish proof marks.
Your life if it was stolen in Quantico
That is impossible to determine without knowing the manufacturer and model of the shotgun.
mossberg
Follow manufacturer's instructions.
@ turn of the century
Savage
Between 1894 and 1930.
No manufacturer at the present time produces a Carolina model.
can't be done without pictures/
Follow manufacturer provided instructions.
it is a Mossberg
Depends on which model/manufacturer.