Mr. Eisenberg. However, you are certain in your own mind of the identification?
Mr. Nicol. Yes; the marks on the firing pin particularly were very definitive. Apparently this firing pin had been subjected to some rather severe abuse, and there were numerous small and large striations which could be matched up very easily.
Mr. Dulles. What do you mean by severe abuse?
Mr. Nicol. It appeared as though it had either been touched up with a file, or in the initial manufacture the finishing operation was rather crude. It was not what I would consider a well-finished firing pin.
Mr. Eisenberg. Mr. Nicol, just to review your earlier testimony, as I recall you stated that you do not use photographs to make your identification, and usually do not testify with photographs?
Mr. Nicol. That's correct.
Mr. Eisenberg. But that the other photographs were made as an accommodation to us, at my request, so that the Commission could see them?
Mr. Nicol. The material I am just talking about could well have been illustrated. However, I ran out of time.
Mr. Eisenberg. Mr. Nicol, finally I hand you a group of four bullets marked Commission Exhibits 602, 603, 604, and 605, which I state for the record were recovered from the body of Officer Tippit, and a group of two bullets marked Commission Exhibit 606, which I state for the record were fired by the FBI through the revolver, Commission Exhibit 143.
I ask you whether you are familiar with this group of exhibits.