I'm not sure specifically as the description is rather unclear. It could potentially be about a Colt firearms advertisement from 1916 that somehow involves a school teacher. Maybe it was an ad campaign targeted at school teachers for self - defense purposes? Or perhaps there was a story related to a school teacher and Colt firearms during that time.
The '1916 colt fire arms ad the school teacher's story' is very ambiguous. It might be that in 1916, there was a Colt firearms advertisement which had a connection to a school teacher. This connection could be in the form of the teacher being used as a character in the ad, or there could be a real - life story of a school teacher who had an encounter or relationship with Colt firearms during that era. Without more context, it's difficult to be certain.