Unusual markings

[oregon1945]

Picked up an old 32 cal handejector with IAOO (or 00) Sac (I assume it means sacramento) Ca (again California) stamped on the right side of the frame. Does anyone recognize this?

 

[hsguy]

I believe those are importer marks.

 

[s&wchad]

IACO? (Import Arms Co)

 

[handejector]

Look again and see if it is IACO.
That would be International Armament Corp, a well known importer.