Mr. Dulles. The breech face makes an impression on the shell, and that is a distinctive impression?

Mr. Nicol. Very definitely, just as individual as a fingerprint.

Mr. Eisenberg. These are two further photographs that you took, Mr. Nicol?

Mr. Nicol. Yes.

Mr. Eisenberg. And they both illustrate the same cartridge case, the same two cartridge cases, the one questioned and the one known?

Mr. Nicol. Right.

Mr. Eisenberg. And you have moved the hairline somewhat over to the right?

Mr. Nicol. Right.

Mr. Eisenberg. Mr. Chairman, may I introduce these as 616 and 617?

Mr. Dulles. They shall be admitted.