There is a slight overlapping here, but you can see it is sort of a V shape—in number 4, very distinctive. Down here you have a Z line with a line through it, number 6. I only brought those out to show six of the similarities. If you go through you can pick out places in the firing-pin impressions, that are similar, by yourself.
Mr. Eisenberg. On the top of each of these photos, C-49 and C-15, there is a large comma-shaped indentation, or comma-shaped mark. What is that caused by, Mr. Cunningham?
Mr. Cunningham. That is caused by a very large imperfection—a very distinctive imperfection in the firing pin itself. And here it is.
Here I am looking at Commission document 601, the breech face and firing pin. If you will look at the firing pin in this photograph, you will see over on this side, this very large imperfection. It is like a facet—it is a flattened side. It shows up in the photograph of the firing pin.
It is indented—since it is missing from the firing pin, it will show as a flattened area in the firing-pin impression. In other words, what is concave on the firing pin itself, will be convex in the firing-pin impression.
Mr. Eisenberg. If there are no further questions on the cartridge cases, I will move on to the bullets.
Representative Ford. Mr. Boggs?
Representative Boggs. Just one question. What you are saying is that there is no doubt about the fact that the cartridges that you examined came from this revolver?
Mr. Cunningham. That is correct.
Representative Boggs. And, of course, there is no question about the fact that this was Mr. Oswald's revolver. Is that so?