Mr. Cunningham. All right—up here, near the top, you will find a very deep ridge, which I will mark "1." As you are coming down, you will find another real deep ridge, which I will mark "2."
When you consider this is 120 times, this is actually quite close together, except it has been magnified—you have a set of marks resembling "railroad tracks," which I will mark "3."
You will find over here—you go down to your next step. There are similarities in between there. The next big set of "railroad tracks" I will mark "4."
Then you move down, and you will find another similarity, four nice marks down near the bottom. This whole area is similar. You are going out of focus, but you can see these "railroad tracks." They are running along very nicely, and that is being marked "No. 5."
The next photograph is a photograph—on the left of the hairline——
Mr. Eisenberg. What Commission exhibit is that?
Mr. Cunningham. No. 598.
On the left of the hairline is our number C-47, the cartridge case. On the right is a test from the C-15 revolver, which is Commission Exhibit 143. These also are breech-face marks in the base of the cartridge cases.
On the right you can see the space between the primer and the base of the cartridge case, and also the individual characteristic marks in the primer.
Mr. Eisenberg. What is the magnification?