I am looking at the ampoule, there is no dot, anywhere.
There are rings, just as shown on this picture. Image view
Except that my larger ampoule (with powder) have two rings,
and smaller (with water) have a one ring.
There is also ring on necks of either ampoules.
I think I have to go on assumption that the break will happen on the neck.
The other assumption (more important), I will assume that all ampoules are pre-scored.
I was opening ampoules while back, 35 years ago, in Poland.
But I had a scoring tool, like it is shown on U-tube.
My ampoules were totally clear except fo writtings.
Now I do not have scoring tool available.
May I assume that all this rings, one on the neck, the other half way to the top,
signify that the neck is scored already?