Do you know whether the Dallas office of the FBI has attempted to make a determination as to whether the replica paper bag, the paper in the replica paper bag, prepared on December 1, Commission No. 364, was, or may have been, or wasn't taken from the same roll as the replica piece of paper or the sample piece of paper, Exhibit 677, which was obtained from the Depository November 22?
Mr. Cadigan. Yes.
Mr. Eisenberg. And can you tell us what you understand the results of their investigation to have been?
Mr. Cadigan. Yes; they were unable to determine whether the paper from the replica sack, Exhibit 364, came from the same roll or a different roll as the known sample obtained November 22. Commission Exhibit 677.
I understand that in the fall, the Depository is busy, and could very well have changed rolls, but no records are kept along that line.
Mr. Dulles. Changed rolls in that time, 10-day period?
Mr. Cadigan. Yes, sir. Actually there were 4 working days in that period.
Mr. Dulles. Yes. But am I not correct that there probably or maybe certainly, I would like to have your view on that, was no change in the roll between the day before the assassination and the night of the assassination, that is between paper bag, Exhibit No. 142, and the specimen that was taken on the night of the day of the assassination?
Mr. Cadigan. I can't tell you that, sir. I have no way of knowing, because these papers are similar in all observable physical characteristics, and they are different from a sample obtained on December 1. I would suspect that this were true. But I can't——
Mr. Dulles. I realize that.